The South Florida Water Management District, CREW’s land managers and primary land owners, will close the CREW Bird Rookery Swamp trail after the boardwalk until further notice for construction.
Please respect the posted signs at the end of the boardwalk so construction efforts can be efficient and completed on time. We will notify you again when the trail work is complete and the entire trail is open.
For now, you may enjoy the 1/4-mile crushed shell path leading to our 1500-ft. boardwalk with wheelchair accessibility remaining open for visitors!
Or you may prefer to visit one of our other three excellent trails. Check out more detail on our website here: CREWtrust.org/visit-crew
CREW Trust environmental education programs brings all ages to the CREW Trails
With the long end-of-year holidays, kids need healthy and fun activities, things they can do with their families and friends. If they’re visiting Florida in December, this is the perfect time of the year to introduce them to the world of nature. The weather is fine for all kinds of outdoor activities. And the four different CREW trail systems offer a variety of sights, sounds and experiences.
But some kids have little experience with the great outdoors. Worms, spiders and other creepy-crawly things may intimidate them. They may resist getting wet or muddy. And they might find trees, trails and rocks uninteresting. Given a choice between playing outdoors or playing a video game, some kids would opt for the indoor game.
Some kids just need an introduction to nature. They need exposure to the physical world in order to learn to be comfortable in it. The adults in their lives can show them how to love nature and be safe in it. Nature promotes healthy growth by encouraging kids to be active. It’s also good for their imaginations, stimulating curiosity by introducing them to new and different experiences. Just being outside in our gorgeous Florida winter weather makes everyone, kids included, feel better.
So how can you persuade your kids to come outside with you? We have some suggestions.
Kids plot out the route at CREW Marsh Trails
Prepare before you load up to hit the trail. Before you take the kids on a CREW hiking trail, share your own enthusiasm about what they might see, hear and experience in the woods. Keep your research simple, and note anything that seems to capture their interests. If they express an interest in spiders, help them do a little research to figure out where and when they might see a spider in the woods. Early morning sun at any of our CREW trails illuminates spider webs and makes them look like jewels adorning the bushes. Choose one particular web and study its construction with your kid, explaining how the spider builds its webs to capture its prey. The Green Lynx spider is a bright shade of green and can be found on many trails.
Tell your kid what he or she is likely to see in the woods. Here in Florida’s forests there are Florida panthers, black bears, bobcats and other mammals, as well as too many birds and insects to name. Address any fears they may express. You can explain, for instance, that Florida’s panthers and bears are shy and can smell you from a long way away, so it’s easy for them to avoid us. If your child is fascinated by panthers, bears and bobcats, show them how to look for the tracks of these animals on a muddy or sandy trail. We have a dazzling array of butterflies in Florida. The beautiful white peacock tends to fly low to the ground so they’re easy to spot. You may also be lucky enough to spot the striking zebra longwing, the Florida state butterfly. Show your kids the photos here and help them look for these colorful treasures in the woods.
Devise a simple game or set a few easy goals for your time outdoors. If your kid is reluctant to touch things in the woods, you can create a simple scavenger hunt that they can complete through observation. Give them a checklist to allow them to check off each item as they spot it. Keep it simple; don’t name a specific bird. Just list “bird” as one of the things they can look for. Other things you can put on the list: worm, bird’s nest, flower, animal track, and big tree. Or you could announce that whoever spots the first bird or butterfly during your outing gets a special prize.
Parents, prepare for your kids to play in the mud. Bring clean clothes, extra shoes and water to wash their feet.
Mud and everything in between at CREW Cypress Dome Trails
Model good behavior for your kids. Explain the “Leave No Trace” principles to them and make sure you take any trash home with you. It’s important that kids learn to respect nature, so explain to them why we don’t feed animals in the wild. This is especially important in Florida where every pond or lake is likely to house an alligator or two. Feeding them destroys their natural fear of humans and encourages them to approach people. Alligators are fascinating to watch but teach your kids to do so from a distance. In Florida’s public parks and nature preserves, it’s illegal to pick plants or to remove anything, so encourage your kids to take photos instead of collecting wildflowers. Take the things you need for safety (bug spray, hat, sunscreen, lots of water) and explain why you’re putting them in your backpack. Let the kids choose a snack.
Before you go, take a look at the CREW website (CREWtrust.org) and decide which of our four trail systems would provide a good introduction to nature for your kids. The rainy season has ended and most of our trails are now dry. If you want to experience the magic of walking through a cypress forest on a boardwalk, consider Bird Rookery Swamp. The red trail at Flint Pen Strand offers easy hiking through pine flatwoods and a prairie where you may spot some deer or even a red-headed woodpecker.
Your child may be excited to get outdoors if you allow him or her to bring a friend. Recognize that kids usually walk at a slower pace than adults and allow them to linger over things that interest them. Most of all, enjoy yourself. Show your own curiosity about things you see. Your enthusiasm for nature in all its varied forms will be contagious.
At the CREW Project, we’ve got four different trail systems for hiking, biking, running and just enjoying the outdoors.
Guided program at CREW Flint Pen Strand on the Purple Trail this rainy season – summer 2021
What is your hiking personality type? Do you have one? Never thought about it? Some would say that where you spend most of your time looking while on the trail says a lot about your interests, like one of those repetitive questionnaires that asks the same question several different ways to find a pattern. For instance, is your head up in the clouds with the birds or are you flipping through your wildflower book while you crouch near the flora? Does every little insect catch your eye, or are you more the type to roll over a downed tree to see what’s hiding underneath? Whatever your type, when you’re out hiking the CREW trails you’ll find a rich assortment of interesting distractions to catch your eye, hold your attention, and spark your imagination.
If you’re the kind of person that tends to look down while you’re hiking you can fit into several categories. For one, perhaps you’re simply clumsy and/or cautious about wildlife crossing your path – in which case I suggest finding a good hiking stick. However, you might be the type to look to the ground with intention, scanning the earth for a sign of life, whether that be a wandering turtle or a seasonal wildflower.
CREW Cypress Dome Trails
If you have a practical preoccupation with the ground in front of you – often you’re a quick trail runner or speed hiker who doesn’t slow down for anything, except perhaps a faster runner. You’re on the right track as long as you’re moving fast enough to blur your vision of the verdant landscape surrounding you. You prefer the smells of the trees over the blast of exhaust fumes and therefore opt to test your endurance in the company of wildlife, even if you’re moving too quickly to witness them. That’s alright, because you yourself are a wild thing, gracefully caressing the ground with your quick footsteps under the canopy of trees and sky. You are a trail runner.
Then again, maybe you’re one of the many who take their time looking at each leaf and petal, searching through the many layers of green to identify something unique in the abundant chaos. You have the ability to see hidden gems, glowing silently in the leaf litter, distinct in their ecosystem. You admire how they grow, for no one in particular, but simply because we have set aside spaces like CREW for them to do so. They blossom with their seasons, adorning the landscape with pops of improbable colors. They complete their life cycle unaided and unattended, capturing your attention if you’re one of those who seeks out their inherent beauty. You are a wildflower seeker.
Julie Motkowicz, CREW Trust Education Coordinator, often discovers and teaches about the bugs of CREW – here she’s observing a Malachite butterfly
Then there are the unique people who find themselves seeking out the most diverse group of organisms on the planet, insects. Given that insects represent approximately 80 percent of the world’s species, it’s a fair bet that you’ll find a good collection to observe on each hike. In fact, at any time, it is estimated that there are some 10 quintillion (10,000,000,000,000,000,000) individual insects alive. Bug nerds like you probably already know that, which is why you’re out with your macro camera lens, focusing in closely on that mother green lynx spider protecting the next generation in her silken web. You are a bug person.
Photo from past CREW Trust Strolling Science Seminar, Herping the CREW Lands (tickets on sale now)
The last predominant subcategory of those that ‘tend to look down while hiking’ includes the herpetologists. These patient seekers know where to look and also that it’s unlikely to find anything. Not to worry though; when you’re as patient and observant as those in this category tend to be, you’ll eventually be rewarded with a cool snake or mud-soaked turtle when you least expect it. That’s when you impress your friends with your reptile spotting skills and knowledge of their behavior, calming your friends’ nerves with helpful advice about how best to interact with our reptile neighbors (give them lots of space and respect). You are a herper.
Photographer and CREW Trust volunteer Bill Zaino out shooting on the Red Trail of CREW Flint Pen Strand
Let’s not forget about those who look up to the sky for the birds. You know you’re a birder when you prefer trails with level ground or bring along a friend specifically to walk in front – so you don’t trip. Bird nerds, as you’re often called by your nearest and dearest friends, will sometimes politely hush hiking friends not so immersed in the sport to allow you to parse out the chorus of warblers, distinguishing their unique calls. You’re an eagle-eyed scout who can often tell a species by their wing shape or flight patterns, counting the number of birds flocking with a best estimate. With all the migratory birds finding their way to or through Florida this season, you’re sure to find your way to the CREW trails soon and often. You are a birder.
Next time you’re out hiking CREW trails, take note of where you tend to look. And then try looking elsewhere to discover new interests. There are many other wonderful things to observe out hiking around the CREW Trails this winter. What do you look for on the trails? Will you try something new?
Barred owls nuzzle at CREW Bird Rookery Swamp Trail – a resident hidden in the trees
Hydrologic restoration results in better natural water flow at CREW Flint Pen Strand
In general, the human mind operates at an exponential pace, keeping time with the flow of society. We tend to have trouble slowing down and observing the different habits of other living things. Likely, that is because it can be difficult to notice these other forms of life living in our human-centric culture, but it can be done closer to home than you might think.
Think about your first memory of being in a forest, nature preserve or park. You get outside seeking adventure, and whatever you’re expecting, it pales in comparison to the real thing. Perhaps you’re lucky enough to see something that is actually majestic – like a white-tailed deer with a strong prancing grace and huge skyward-facing rack of antlers, or some Everest-high clouds rising above a flat Florida landscape.
Oftentimes it’s these personal connections that make these natural places special to us as individuals and it’s only through time and experience that we realize the significance is more than it seems. You’ll be glad to know that accompanying the vistas and wildlife along the CREW trails, there’s a long-range plan in effect, one that looks to our universal need for water and the protection of watersheds.
Watersheds are everywhere, get to know yours at CREW!
CREW Trust leads seasonal walks through our watershed, at CREW Flint Pen Strand
Forward-thinking people have for generations set aside huge swaths of land, like the CREW Project, for future generations. These public lands benefit the present inhabitants of an area manyfold, while also protecting our ongoing needs. The need for water, one of Maslow’s seven basic needs, is met by protecting the CREW watershed where many southwest Florida’s residents get their drinking water.
A unique mixture of partners divide up the roles of preservation at CREW. Land management falls to the primary land owners, the South Florida Water Management District (the District for short) which takes on the arduous role of long range planning – taking into account the complex needs of people and wildlife. The Florida Fish and Wildlife Conservation Commission (FWC) pursues in-depth and long ranging scientific observation projects focused on CREW’s native wildlife. The non-profit CREW Trust expands public access to the lands through a 36+ mile network of trail systems and provides environmental education to our community through contributions via membership, donations, sponsorships, trail visitation, and volunteerism.
Whatever first brings you to wild places like CREW, or even if you never visit, every single resident in this region of southwest Florida contributes to and benefits from the foresight of protecting CREW’s lands for water. The 60,000+ acre watershed that makes up CREW is permeable – under all those pretty wildflowers and trees that we enjoy on hikes, water soaks through – purifying it through the limestone rock and storing it in the aquifer below.
Make a connection with CREW
Maypop passionflower with two small visitors
Hiking along the CREW trails, listen for the erratic yet hypnotic buzz of a bee hive you could easily miss in the rapid pace of society. Instead, allow yourself to pause and listen; search for the pixelated movement of wings, coming to and fro from the hive epicenter. It’s not like bees often stop to look at us either, but humans are capable of slowing down to witness another life form. FWC biologists do it all the time at CREW and we are all capable of this broader understanding; that’s why we’ve made it easy to practice your observation skills at CREW.
Whatever brings you to the CREW trails and if you only remember one important thing from this article remember this: alligators love suntanning as much as Floridians. Seriously though, your contributions- through your tax dollars, your membership with the CREW Trust, or your visits to CREW trails with friends and family – are making a difference for generations to come.
Florida Fish and Wildlife Conservation Commision fieldwork – bird banding: Northern Parula
8/20/2021
We often use the phrase “hard-wired” to suggest a natural instinct or reflex – an unconditioned response that happens without thinking, that you feel deep in your bones. Migratory birds in that sense are hard-wired to navigate on long journeys – sometimes crossing continents and oceans, which for their size is a feat worthy of recognition in itself! Consider the Swallow-tailed Kite who travels 5,000 miles crossing South America, Central America, and the Gulf of Mexico spending only months in places like CREW just to turn back and do it all over again! Still, how they do it is even more impressive.
Scientists have been fascinated by the phenomenon of migration even before Darwin’s observations on the HMS Beagle and they continue to research compelling migration theories to this day. One leading explanation concentrates on the biological and chemical makeup of some long-distance migrants and their relationship to the earth’s magnetic field through an adaptation with magnetite.
Swallow-tailed Kite over the CREW trails
Magnetite is an iron oxide crystal that aligns with magnetic north, kind of like a tiny compass needle, and amazingly it can be found in the cells of some birds. Scientists think the magnetite crystals even serve as receptors, or inclination compasses, that send directional information input to those species predisposed to this genetic variation. Studies conducted found that magnetite can be adversely affected in the birds by demagnetization either naturally or in the lab; therefore it appears that birds can still defer to their “plan b” with their powerful eyesight.
Extensive research conducted on some populations of birds, especially the Bobolink, has produced fascinating results. Through rigorous and ethically-minded scientific testing, researchers found that when temporarily demagnetized, Bobolinks lose their sense of direction. When their magnetic senses were restored they regained their instinctive migration route.
So what happens when it’s not the researchers disturbing migratory birds’ cellular receptors? Laboratory demagnetization mimics natural disturbances in the environment, such as changes of terrestrial magnetism like earthquakes, tsunamis and even solar flares from the sun. With all the natural interruptions observed in the field, researchers continue to look for birds’ evolutionary/emergency “plan b”.
Swallow-tailed Kites resting in roost at CREW before their return to South America
And they seem to have found their answer in the most fascinating place – the cones of the eye; animals who possess cells that include iron oxide crystals may also have the ability to sense magnetic fields through vision. It appears that birds sensitive to magnetic fields have light-sensitive pigments in their eyes, known as cryptochromes, that serve as magnetic sensors distinguishing magnetic fields through color changes.
Imagine that when a cool color, like blue or green, strikes their eyes, electrons in their eyes become energized resulting in something resembling science fiction – north and south become color-coded! When these birds look toward or away from the magnetically charged poles, their field of vision changes color from intensely colorful to lacking in extraneous color.
Many other animals apparently also have iron oxide crystals in their cells: magnetite has been found in the heads of migratory fish, sea turtles and humpback whales. However, of all the wildlife navigators, birds so far are the best studied.
Migration research is a fascinating field of study and leads one to wonder how widespread these genetic-based abilities have developed in other less studied birds. For instance, could our local migratory Swallow-tailed Kites also use this form of navigation? However likely it seems, thus far research has focused on migration monitoring via tracking studies. The future of research is always ripe for possibilities, so stay connected!
White Pelicans, Woodstork, Roseate Spoonbill, and a Tricolored Heron stroll up to CREW Flint Pen Strand
Note: Two great CREW trails to observe the next magnetic migration on are the CREW Flint Pen Strand trails and the CREW Bird Rookery Swamp trails. Keep an eye out for the Bobolinks and other migrants like White Pelicans and Sandhill Cranes that have been observed on these CREW trails.
Read more about this subject in a recent article in Nature (there’s even a model drawing for magnetoreception!)
What should I expect on the CREW Trails this summer?
Water! You may have heard us say this before, but I’ll say it again here, CREW is ALL about water!
As rainwater accumulates on the ground, absorbing and leaching through the ground surface down through the porous limestone rock and into the aquifer, it replenishes the groundwater and restores the aquifer.
Lakes around CREW Flint Pen Strand trails
We won’t see that water again until we either turn on the faucet, or visit the trails after the water table rises above the surface. That’s also the point when we describe the trails as, “inundated with water” and you should prepare for a wet walk.
“It’s always amazing how that point of saturation seems to break the ground surface overnight in CREW, as the aquifer literally fills up and overflows on the trails.”
CREW Trust executive director Brenda Brooks
Saturation happens at different times throughout CREW because it is such a large watershed with 60,000 acres of land. After that stage, we start to see the next step in the cycle of water through the CREW lands, called sheetflow.
Sandhill Cranes grazing around CREW Flint Pen Strand marshes
You may want to take a moment this summer when you’re out on the CREW trails to celebrate the rainy season because wet trails mean fresh drinking water, flood protection and numerous other benefits for humans and wildlife that frequent this corridor of Florida.
Reclaimed water is the second phase of our drinking water extracted from underground aquifers (Bonita Springs Utilities)
CREW Trails
CREW Marsh trails:
American Bluehearts at the CREW Marsh trails
On the northern side of the CREW Marsh watershed, you’ll find the CREW Marsh trails. These trails will remain dry, for the most part, the longest of any trail system, as most of the sheetflow from the CREW Marsh will slowly trickle southwest. However, smaller seasonal marshes along the ecotones of the trail will fill up around the same time as the CREW Marsh and flow over the trails. Once the water level is above the ground surface, expect to consistently get your feet to ankles wet on these trails. The Red trail that hugs the CREW Marsh will fill up first, along with the Green trail as they both border the largest accumulation of water, our 5,000-acre sawgrass marsh.
CREW Cypress Dome trails:
Nesting Swallow-tailed Kite at CREW Cypress Dome trails
Areas of the Green trail near the cypress dome and almost all of the Wild Coffee trail will become increasingly inundated with water as the water table rises. If you hike the Wild Coffee trail and portions of the White trail, expect to get wet up to your waist at its highest and wettest point. Other sections of the White trail will pool water and increase the likelihood of getting your feet wet. The crossover from CREW Cypress Dome trail to Caracara Prairie Preserve trails will require you to ford across a small canal. This area can fill to waist height, so be prepared to get very wet. Caracara Prairie Preserve includes one elongated marsh crossing and several areas of the trails become inundated with water.
CREW Flint Pen Strand trails:
Barred Owl at CREW Flint Pen Strand trails
Take a walk along the bumpy berm of the Red trail, left behind by the canal excavation constructed to direct water through the early farmlands once present in CREW Flint Pen Strand. Trails bordering the Kehl Canal, headwaters for the Imperial River which runs to the Gulf of Mexico, are a great place to watch water levels rise as we get more into our rainy season. Check out the Yellow trails north and south along with the Red trail to get a view of the Kehl Canal. Or hike east on the Orange and Purple trails, where you can see some of the impact of the hydrologic restoration (link to previous article) designed to restore and slow the sheet flow over the surface of the land, giving it more time to soak in and replenish the aquifer. All of these trails will eventually be underwater, especially in the marshes surrounding the lakes.
CREW Bird Rookery Swamp trail:
CREW Trust volunteers walking around a gator tail at CREW Bird Rookery Swamp trail
The trails here were constructed on a historic railroad tram, which continues to provide a raised trail above the surrounding swamp. The low dips will fill with water and require crossing.
As you set out to enjoy the riches of Bird Rookery Swamp (BRS for short) think of the people who have used this land before you. Some highlights:
From approximately 500 BC to 1600 AD, the fierce Calusa tribe traversed this huge swamp from their home base on the southwest Florida coast (in the vicinity of what is now Ft. Myers Beach) to their hunting and fishing camps at Lake Trafford in Immokalee. Waterways (rivers, streams, even sheet flow) were so plentiful that the Calusa traveled in canoes hollowed out from giant bald cypress trees harvested in Bird Rookery Swamp. They made use of what they found at Bird Rookery Swamp for their daily living needs; they ate the hearts of sabal palms and used the fronds to weave floor mats and to roof their dwellings. They harvested the fruit of cocoplums and pond apple trees, they fished the waters, and they used plants for medicinal purposes.
Dugout Canoe found at Lake Trafford. Photo by Andrew West
The bird plume trade drew feather hunters to Bird Rookery Swamp from the late 1800s to the early 1900s at which time state and federal laws were enacted to protect the birds. At the height of the trade, a pound of bird plumes was more valuable than a pound of gold, and the white ibis (known as the Chokoloskee Chicken) was considered a delicacy. Today Bird Rookery Swamp provides sanctuary for at least 45 kinds of birds, including some protected and threatened species.
Rosette Spoonbill
The timber trade brought the next economic exploitation of Bird Rookery Swamp. In 1934, cypress wood sold for $60 to $100 per 1,000 board feet. Over 40 miles of elevated trails (called trams) were constructed to run a narrow-gauge train to extract harvested trees, which were sent to a mill in central Florida. Those trees, generally around 130 feet tall and 25 feet in girth, were 500 to 600 years old. Cypress was a hard, durable wood resistant to water and bugs. Cypress trees harvested at Bird Rookery Swamp were used to build PT boats during World War II, to rebuild war-torn Europe and to provide wood for homes sold through the Sears catalog. The last surviving steam engine used on the Bird Rookery Swamp trams is on display at the Collier County Museum. A court order in 1957 ended logging at Bird Rookery Swamp.
Farmers and ranchers have used Bird Rookery Swamp lands since the late 1800s to grow orange trees and to plant field crops such as tomatoes, melons and potatoes. If you look carefully into the Bird Rookery Swamp forest, you’ll see a few derelict barbed wire fences, relics of the cattle ranching that ended in the mid-1970s.
As part of ongoing efforts to help prevent the potential spread of COVID-19 and protect public safety, the South Florida Water Management District (SFWMD) will temporarily close the all CREW trails, effective at 6 p.m. on Saturday, April 4, 2020.
Closure includes Bird Rookery Swamp, Flint Pen Strand, Cypress Dome and CREW Marsh trails.
The District follows the lead of local governments that have issued Safer at Home orders in their communities and guidance from the Centers for Disease Control and Prevention (CDC) and the Florida Department of Health.
Forest bathing is widely practiced for health reasons. The concept is simple: to surround yourself in nature for the purpose of absorbing the healing properties of the forest. Adherents claim that it can lower blood pressure, slow the heart rate and reduce the levels of harmful hormones such as cortisol. Overall it has a calming effect.
But does it really work or is it the product of someone’s imagination? Research shows that the effects of forest bathing are real and demonstrable. A Russian scientist began to study forest bathing in the 1920’s, working on the theory that the “aromas of the forest” strengthen our immune systems. Subsequent study has shown that trees emit an organic, antimicrobial volatile compound that our bodies absorb and which reduces inflammation and helps us fight off germs.
So how to practice forest bathing? First, find a peaceful wooded area where you can linger for 20 minutes daily. When you enter that quiet forest, walk slowly and stop often, listening and observing. This is not a time for your daily jog – vigorous exercise defeats the purpose. Instead immerse your senses in the sights and sounds of nature while you’re absorbing that healthy aroma of the forest. The nearby presence of water enhances the effect.
Of interest to those of us who live in southwest Florida, modern research has determined that the trees which give us the greatest benefits in forest bathing are all varieties of cypress trees. CREW’s Bird Rookery Swamp Trail is an ideal place to practice forest bathing. Surrounded by cypress trees and plenty of water, you leave feeling refreshed.
