Remains of an “outdoor museum” built by the Civilian Conservation Corps (CCC) in 1933. The concrete enclosures originally held fish, turtles, snakes, and other creatures. The museum was only open during the summer, and so captive animals were released at the end of the season.
But apparently some animals have decided to stick around! The concrete foundation still holds water, and was teeming with frogs (Lithobates clamitans) and tadpoles when I visited.
A case of interspecific amplexus between a male Rana clamitans and female Rana catesbeiana. In other words, a mating embrace between two different species of frogs: a male Northern green frog and a female American bullfrog.
This particular bullfrog discovered my pond this summer, and multiple male green frogs have attempted to mate with her ever since. This was the first time I saw a pair out of the water.
Green Frog [I forgot where I took this pic] (Morning, late May, sunny)
The green frog is a large frog with large, distinct tympani (eardrums) and two prominent dorsolateral folds (folds of skin that run partly down the back). It may be green, bronze, brown or even blue, or a combination of colours, but typically is green on the upper lip. The belly is white with darker lines or spots and occasionally has a yellow tinge. The hind legs have dark banding, and there may be irregular spotting on the back.
Green Frog [I forget where I took this shot] (Afternoon, late May, sunny).
American bullfrogs and mink frogs are very similar to the green frog. Bullfrogs do not have a dorsolateral fold but have folds of skin that wrap downward around the tympani. Mink frogs have dark spots or blotches rather than dark banding on the hind legs and often have a yellow belly.