It’s Baby Bat Season!

It’s Baby Bat Season!

The Chinese wu-ful symbol is a ring of bats used to symbolize luck and blessings in life.

When I start talking about bats, it often elicits a strong response in people. Folks either gush about how great they are, how interesting and helpful, or they shudder and talk about how bats give them the creeps. I understand why they make people nervous. They hide out and swoop around in the dark, may show up in unwanted places (like attics or sheds), and are omnipresent in every creepy horror movie or Halloween theme. Interestingly, the have absolutely the opposite cultural reputation in China. There, bats have been considered a symbol of good luck for millennia. Buildings, jewelry, artwork, etc. are adorned with bats or the “wu-fu” symbol, a circle of five bats. I certainly come down on the side of “bats are the best ever.” Collectively, the bats in our communities eat millions of mosquitoes and agricultural pests every night. Without them, we’d be overrun with insects, disease, and damaged crops.

A wildlife biologist feeds an overwhelmed mother bat and her young after they were found on the ground. Photo credit: Carrie Stevenson, UF IFAS Extension

As a mom, I also have the utmost respect for bat mothers. When a member of this acrobatic species gives birth, it’s done while hanging upside down by her feet. When the baby is born, mom catches it in her wings and the newborn crawls up to her abdomen. Bat babies are not tiny, either—at birth, they are typically up to a third of an adult bat’s weight. Can you imagine giving birth to a 50+ pound baby, while hanging from your feet? Thankfully, most births are single pups, but occasionally multiples are born. Through our local wildlife sanctuary, I once met an exhausted bat mother of triplets. She and her new brood were found together on the ground—mom was unable to carry all three with her as she flew.

Close-up photo of a Seminole bat and her two pups recovering at the Wildlife Sanctuary of Northwest Florida. Photo credit: Carrie Stevenson, UF IFAS Extension

Summer is maternity season for female bats, typically giving birth in May or June.  Being fellow mammals, bats must stay near their newborns to nurse. It takes about three weeks for juvenile bats to learn to fly. During that time, they either cling to their mother, nursing on the road, or stay behind in a maternity colony as she feeds at night.  For that reason, during the period from April 16-August 14, it is illegal to “exclude” or prevent bats from returning to their roost—even if it’s your attic. Blocking a bat’s re-entry during this time frame could result in helpless newborn bats getting trapped in a building.

So, if you have seen evidence of bats flying in and out of your attic—or another building that should not house them—you will need to wait until August 15 or later. Excluding bats from a building entails waiting for the bats to fly out at night and putting up some sort of barrier to prevent their return. This can be done using several different methods explained in this video or by using a reputable wildlife professional. The Florida Fish & Wildlife Conservation Commission has regulatory oversight for bat-related issues, and they will work with homeowners to arrange a positive outcome for both the homeowner and the animals involved.

On just about any spring or summer night at dusk, you can look up and see bats darting around, chasing and catching insects. If you are a total bat nerd like me, there are also several places around the southeast with large bat houses for public viewing. In Gainesville, the University of Florida bat houses are home to over 450,000 bats that leave the houses every night. An even larger colony in Austin, Texas (750,000-1.5 million bats) flies out at sunset every night to forage from their dwelling under a downtown bridge. Both are fascinating experiences, and worth a visit!

The University of Florida bat houses on the Gainesville campus are home to hundreds of thousands of bats that emerge every evening. Florida Museum photo by Kristen Grace

If you’re interested in building a bat house for your own backyard, reach out (ctsteven@ufl.edu); I have examples at the office and several sets of plans for building bat houses and installing them correctly. The publication, “Effective Bat Houses for Florida” goes through the best way to figure out where to place a house and includes a set of plans.

Snake Watch 1st Quarter Report; 2024

Snake Watch 1st Quarter Report; 2024

The Snake Watch Project is one that is helping residents in the Pensacola Bay area better understand which species of snakes are most encountered, where they are encountered, and what time of year.  The project began in 2022 and over the last two years between 50-60% of the 40 species/subspecies of snakes known in the Pensacola Bay area have been encountered.  The majority of these encounters have been in the spring, with garter snakes, black racers, banded water snakes and cottonmouths being the most common.

The eastern garter snake is one of the few who are active during the cold months.
Photo: Molly O’Connor

The 1st quarter reports cover the winter months, and you would expect fewer encounters – but encounters do happen.  In 2022 there were only 6 encounters during the winter months.  There was one mid-sized snake (between 12-24” maximum length), 2 large snakes (greater than 3’ maximum length), 1 water snake and 2 cottonmouths for a total of five species.  In 2023 there was a significant increase in 1st quarter reports.  There were 57 encounters (26% of the total for the year) and 13 species logged.

  1. Two species of small snakes (less than 12” maximum length) were encountered three times.
  2. Three species of mid-sized snakes were encountered nine times, this included an encounter with the eastern hognose snake.
  3. Six species of large snakes were encountered 17 times. These include the rarely seen eastern kingsnake and Florida pine snake.
  4. Three species of water snakes were encountered, including the green water snake.
  5. The cottonmouth was encountered 10 times during the 1st quarter of 2023.

This increase in sightings may be more a result of more people interested in the project than a true increase in snake activity, but it does provide us with information on snake activity during the winter months.  Eastern garter snakes, eastern ribbon snakes, banded water snakes, and cottonmouths were the most frequently encountered.

A cottonmouth found on the trail near Ft. Pickens.
Photo: Ricky Stackhouse

Snake encounters during the 1st Quarter of 2024 are down.  This year 27 encounters occurred logging eight species.  The cottonmouth continues to be the most encountered snake in our area and the only one who was encountered in double digits (n=11).  Other species encountered included the eastern garter snake, eastern ribbon snake, gray rat snake, corn snake, southern black racer (encountered every month), eastern coachwhip, banded water snake (encountered every month), and the cottonmouth (also encountered each month this quarter).

We will continue to log encounters during the spring.  If you see a snake, please let Rick O’Connor know at roc1@ufl.edu.

The Northern Cardinal

The Northern Cardinal

It seems overnight our yards and woods have come to life with the flitting of the Northern Cardinals, but the truth be told, they have been here all year! This eye-catching songbirds are abundant in the southeast. According to the North American Breeding Bird Survey their numbers continue to increase 0.32% per year since 1966, with an estimated 130 million global breeding population.  

Adult Male Cardinal, Photo Sourced from Canva Pro.

History

The Northern Cardinal is not new to the bird scene. With the males sporting vibrant red plumage they caught the eye of founding colonists. In seeing they had similar red colors to the biretta and robes of the Catholic cardinals the early settlers gave them their name—The Cardinal.

Identification

While the males are the noticeable bright red color, the females are a light brown bird with a reddish crest, wing, and tail. These non-migratory birds can be seen year-round in the Southwest, Midwest and Eastern parts of the U.S.

Female Adult Cardinal, Photo Sourced from Canva Pro.

Habitat

Living in dense shrubby areas, along wood lines and in regrowth the North Cardinal enjoys hopping through low branches and forage along the ground. They commonly sing and preen on higher branches. Interesting most female songbirds do not sing, but female Cardinal does. They are granivorous animals, meaning they mainly consume seeds, nuts, shells, and hulls, but they also enjoy some fruits and grasses.

Reproduction

Cardinals are monogamous birds, however nearly 20% of the pairs will split up by the next season and being searching for a new mate. Early spring marks the kick-off to mating season and it lasts into September, with each mating pair having one or two broods a year.  After mating in the spring, the female can lay eggs continuously over the course of the season with the sperm being available in the female’s chambers for an extended period. Typically, the clutch size is between 2-5 eggs and are incubated 11-13 days before the 7-13 day nestling period after which the chicks are ready to leave the nest as fledglings. They will come and go from the nest for the next two weeks, before leaving for good. The adolescent birds will then stay with their parents (but not in the nest) for the next 40 days before they leave to find their own territories.

As we make our way into spring take time to enjoy the Northern Cardinals that have likely been your neighbors all year.

Pensacola Snake Watch – 2023 3rd Quarter Update

Pensacola Snake Watch – 2023 3rd Quarter Update

Since last year we have been logging reports from area residents of snake encounters.  The purpose of this is education.  We are learning which species people most frequently encounter, what time of year different species are encountered, and where they are being encountered.  Here is the 2023 3rd Quarter Update. 

To date – we have encountered 24 of the 40 species (60%) known to inhabit the Pensacola Bay area. 

The most frequently encountered snake has been the cottonmouth.  This species has been encountered 45 times.  It has been seen every month this year and at the following locations – north and south Escambia County as well as north and south Santa Rosa County. 

The cottonmouth. Photo: Ricky Stackhouse.

The second most frequently encountered snake has been the southern black racer.  This species has been encountered 35 times and every month except January.  Locations reporting this snake included – north and south Santa Rosa County, as well as north and south Escambia County. 

Southern Black Racer. Photo: Ricky Stackhouse.

The third most frequently encountered snake has been the banded water snake.  This species has been encountered 26 times and 25 of those were last winter and spring – the snake was only reported once during the summer and has not been reported this fall.  It was encountered from north and south Santa Rosa County as well as north and south Escambia County. 

The banded water snake is one of the more commonly encountered water snakes. Photo: Rick O’Connor

Reports by snake groups…

Small Snakes – 4 of the 7 species (57%) have been encountered.  The most common have been the Florida red-bellied snake and the Southern ring-necked snake.  These have been reported from north Escambia County, south Escambia County, north Santa Rosa County, Pensacola, Milton, and UWF. 

Florida Red-bellied snake. Photo: James Cutler.

Mid-Sized Snakes – 5 of the 8 species (63%) have been encountered.  The most common has been the Eastern garter snake.  It has been reported from north Santa Rosa County, south Escambia County, south Santa Rosa County, and north Escambia County. 

The eastern garter snake is one of the few who are active during the cold months. Photo: Molly O’Connor

Large Snakes – 6 of the 7 species (86%) have been encountered.  The most common has been the Southern black racer followed by its close cousin the Eastern coachwhip.  The only large snake not encountered so far this year has been the Eastern indigo snake, which is a threatened species and encounters in the wild have not been documented since the late 1990s.  Coachwhip encounters have occurred from south Escambia County, north Santa Rosa County, and south Santa Rosa County.

Eastern Coachwhips are long and thin, and most adults have a dark head and upper body. The rest of the body is tan or brown and the scale pattern on the tail resembles a braided bullwhip. Photo by Nancy West.
The eastern indigo snake is the largest nonvenomous snake in the southeast. Photo: Molly O’Connor

Water Snakes – 4 of the 13 species (31%) have been encountered.  The most common has been the Banded water snake followed by the Brown water snake.  The Brown water snake has been encountered on the Choctawhatchee River, Perdido River, Blackwater River, Escambia River, and south Escambia County. 

Venomous Snakes – all 4 venomous species in our area have been encountered (100%).  The most common has been the Cottonmouth followed by the Eastern diamondback rattlesnake.  The diamondback has been encountered from south Escambia County, north Santa Rosa County, and south Santa Rosa County.  With high interest in venomous snakes, the other encounters include the Dusky pygmy rattlesnake, which has been encountered from south Escambia County, and north Santa Rosa County.  The Eastern coral snake has only been encountered once and that was from south Santa Rosa County. 

Eastern Diamondback Rattlesnake. Photo: Bob Pitts.
Dusky pygmy rattlesnake. Photo: Jessica Bickell.
Eastern coral snake. Photo: Joe Burgess.

Rare Encounters – those that have only been encountered once this year…

Rough earth snake was encountered during September from south Escambia County. 

Rough green snake was encountered during August from north Santa Rosa. 

Eastern hognose was encountered during July from north Santa Rosa. 

Eastern kingsnake was encountered in February from north Escambia County.

Eastern coral snake was encountered in June from south Santa Rosa County. 

Florida pine snake was encountered during the winter and spring from north Santa Rosa County.

Seasonal Encounters

Winter – 57 encounters, 13 species.

Spring – 89 encounters, 20 species.

Summer – 52 encounters, 18 species. 

The Long Flight South

The Long Flight South

In the fall of the year, North American monarch butterflies travel from their summer breeding grounds to overwintering location. Those from east of the Rocky Mountains, travel up to an astonishing 3,000 miles to central Mexico. Unlike summer generations that only live for two to six weeks as adults, Eastern monarch adults emerging after about mid-August can live up to nine months. They enter reproductive diapause and begin migrating south in response to decreasing day length and temperatures. This generation has never seen the overwintering grounds before. 

As the Monarch butterflies migrate through the Panhandle, saltbush (Baccharis halimifolia), is a must visit.  Their tiny, white to greenish blooms and “fuzzy-looking” fruit come into flower and are attractive at a time when few other small trees and shrubs are flowering, bring this rarely-noticed native plant into view in the fall landscape.

Saltbush is an oval to rounded, freely branched, multi-stemmed, hardy, semi-evergreen to deciduous, cold-tolerant shrub usually not exceeding about 12 feet in height.  Its leaves are 1-3 inches long and about 1 1/2 inches wide, often deeply toothed, and shiny to grayish green.  No serious pests are normally seen on the plant.   Also referred to as Groundsel, it is native to coastal and interior wetlands throughout Florida, often seen in its native habitat with Wax Myrtle, Buttonbush and Marsh Elder.

The average pace of the migration is around 20-30 miles per day. But tag recoveries have shown that monarchs can fly 150 miles or more in a single day if conditions are favorable.  Monarchs migrate during the day, coming down at night to gather together in clusters in a protected area.  In the south, they might choose oak or pecan trees, especially if the trees are overhanging a stream channel.

Monarchs migrate alone—they do not travel in flocks like birds do. So they often descend from the sky in the afternoon to feed, and then search for an appropriate roosting site. Most roosts last only 1 or 2 nights, but some may last a few weeks.

By early November, the monarchs gather in oyamel fir (Abies religiosa) trees on south-southwest facing mountains in central Mexico. Orientation of insects is not well understood by entomologists. It can’t be learned from their parents since it’s the fourth or fifth generation that migrates south. Celestial cues (the sun, moon, or stars) and the earth’s magnetic field are the most accepted driving forces influencing the monarch butterflies’ instincts. Unique genetics in North American monarchs have been discovered by researchers. Low metabolic rates and changes in muscle function make migrating butterflies endurance athletes.

The earliest records of overwintering clusters of monarchs are from the 1860s. The chosen grounds provide all the elements needed for overwintering. Because monarchs need water for moisture, the fog and clouds in the two-mile-high mountainous region provide a perfect resting area. Clustered together, covering the trunks and branches of the sacred fir trees, the monarchs are protected form the occasional frost, snow, rain, or hail by the thick canopy of the tall trees, surrounding shrubs, and nectar providing flowers. Milkweed is not the essential plant for the overwintering generation. Come spring, the monarch will begin their search for the milkweed.

A New Camera Trap Monitoring Program for Private Landowners

A New Camera Trap Monitoring Program for Private Landowners

A deer darting across a path, a bobwhite calling at sunrise, or the tracks of a coyote in the mud are all fascinating examples of how we enjoy our natural areas. Have you ever wished you could watch wildlife all day to understand the intricate relationships they have with one another? What if you could learn more about their behavior? And their habitat and daily activities?

Deer captured on a digital game camera. Image: Dr. Carolina Barzzui.


Dr. Carolina Baruzzi at the UF/IFAS North Florida Research and Education Center and Dr. Corey Callaghan at the UF/IFAS Fort Lauderdale Research and Education Center are launching “ConservationCam”, a new extension program to help you monitor wildlife on your property using camera traps.


Camera traps are a valuable tool for wildlife monitoring. When an animal moves in front of a camera, they trigger a motion sensor to take a picture or video. Camera traps can be set up in multiple ways to target a species or habitat of interest, such as a forest opening or a wildlife burrow. Thanks to their versatility and relative low cost, camera traps are being used in a variety of contexts, for example, understanding the effects of wildlife or habitat management on target species.

Images of turkeys captured on a digital game cam. Image: Dr. Carolina Barzzui.


The primary goal of ConservationCam is to provide private landowners with access to camera traps, and expert guidance about monitoring wildlife and managing natural resources for biodiversity based on camera trap observations. Armed with this knowledge, landowners can make informed decisions about land management practices that positively impact biodiversity on their property. If you live in the Florida Panhandle, and are interested in using camera traps to monitor wildlife on your property, while learning how to answer different ecological questions, we are gathering expressions of interest through this online form.


Rabbit near a burrow on a digital game came. Image: Dr. Carolina Barzzui.