Showing posts with label American toad. Show all posts
Showing posts with label American toad. Show all posts

Frogs Galore at White Memorial!

Northern Spring Peeper photograped by

Ashley Hayes at White Memorial's Museum Area

Wood Frog photographed by Ashley Hayes

at White Memorial's Mott-Van Winkle Area

Green Frog photographed by Dave Rosgen

at White Memorial's Duck Pond

Bullfrog photographed by Dave Rosgen

at White Memorial's Duck Pond


Northern Leopard Frog photographed by

Dave Rosgen in White Memorial's Ongley Field


Frogs are thriving at White Memorial, thanks in part to the massive amounts of rain that have fallen here this year. In many years frogs and other amphibians that breed in vernal pools face a race against the clock to grow-up, metamorphose into their adult form, and exit the pool before it dries up. Not this year! Ample amounts of rain kept water in vernal pools and other wetlands long enough for these animals to go through this process with time to spare. Even though there wasn't much rainfall in July, our wetlands retained a decent amount of water. Frogs, and especially juvenile ones, have found that the upper reaches of floodwaters are an ideal place to hang out, wait for invertebrate animal food to come close enough to be caught, and escape into the safety of the water if predators come after them. On several occasions since Tropical Storm Irene passed through this area I've gone out to look for amphibians, storm-blown birds, and other creatures. That includes trying to get reasonably accurate counts of frogs. I found that walking the upper reaches of the floodwaters was the ideal place to find these animals, whether it was in woods, fields, or wetlands. Frogs were in all of these places. On Tuesday, 8/30/11, I went around our Lake, Windmill Hill, Ongley Pond, and Mill Field Trails, following the border of the floodwaters. I counted a total of 225 Green Frogs, 16 Northern Leopard Frogs, 10 Wood Frogs, 10 Northern Spring Peepers, 2 Gray Treefrogs, 1 Pickerel Frog, and 1 American Toad. Surprisingly, I didn't see any Bullfrogs. I also saw a 3/4" wide Eastern Garter Snake attempting to swallow a 2" wide Green Frog, a fair-sized Northern Water Snake heading towards a group of Green Frogs, and 10 Painted Turtles foraging in the shallow water. Three Belted Kingfishers at the intersection of Lake and Windmill Hill Trails were undoubtedly looking for easy pickings in the shallow water. They will eat frogs just as readily as they'll eat fish. However, I also saw small fish in the water, so the kingfishers may have been after these, too. On Friday, 9/2/11, I checked the Mill Field and Interpretive Trails and counted 43 Green Frogs, 6 Bullfrogs, 5 Northern Leopard Frogs, and 2 Pickerel Frogs. Some of these were caught by student volunteer Nicole Morin and swabbed for Chytrid fungus as part of another one of our on-going research projects. The following day, student volunteer Marcus Johansson helped me lead a walk for 16 members of the public with the focus being on amphibians and reptiles. We visited Ongley Field and Pond and the Mill Field and Interpretive Trails, checking all of the flooded areas. We counted 150 Green Frogs, 12 Northern Leopard Frogs, 5 Northern Spring Peepers, 3 Wood Frogs, 3 Bullfrogs, 2 Pickerel Frogs, and 1 American Toad. Marcus caught 3 of them for swabbing. This was very educational for the attendees. A quick check of Pine Grove 2 after our latest flooding event today (at least 4" of rain fell yesterday and last night) revealed 75 Green Frogs around pools of water.


Frog and Toad Call Study Guide

We are surveying frogs and toads at White Memorial by call recognition.  This is a study guide for volunteers to become more familiar with the calls of the frogs and toads that we are searching for on the property.  If you are interested in volunteering to help our survey efforts please contact White Memorial for more information (860-567-0857).

How to use this study guide:  
Play each video and observe the animal vocalizing their call.  You can play more one video at the same time to hear each call in close proximity.  This could be useful for vocalizations that have similar qualities such as the American toad and Fowler's toad.  You can also hear in several of these videos the songs of other  species other than the focal species.  Can you identify the calls in the background?  Feel free to make a tape of the calls in the field at your survey points and compare them to the calls on this study guide.  Frogs and toads will have regional dialects to their vocalizations, just like songbirds.  Can you identify any of these variations?  

American toad

Fowler's toad


Bull frog

Northern leopard frog

Pickerel frog

Green frog

Spring peeper

Wood frog

Gray treefrog



2011 White Memorial Foundation Property-Wide Frog Call Survey Workshop


Saturday, March 19, 2011
5:00 p.m. to 8:00 p.m. 
A. B. Ceder Classroom

Wood frog Photo By Donna Potwin

We are continuing our property wide survey for frogs and toads by identifying their calls.  Laura Saucier, CT DEP, Wildlife Technician, will facilitate our workshop.  We will be discussing the importance of monitoring these species and their natural history.  Please dress for the weather and wear sturdy footwear because there will be activity in the field.  This program will be a rain or shine event.