Sunday, September 20, 2009

Green Tree Frog

We've had a large number of Green Tree Frogs hanging out on our house today.  This is something which we have not seen in the past.  We can only assume that the abnormally high rainfall we've experienced lately is causing them to move to the high ground.  Green treefrogs live primarily in the southeastern United States, from Delaware, south through eastern Maryland, Virginia, and the Carolinas, southern Georgia, across all of Florida, west to eastern Texas and areas north along the Mississippi Valley to southern Illinois. In Alabama their distribution is essentially statewide.  Green treefrogs prefer wet or moist areas such as swamps, lake sides and the edges of streams. Occasionally they are found in brackish water. During the day they are often found on vegetation near water or in other moist shady areas sitting quietly with their feet folded neatly beneath them. Breeding in Alabama usually begins in April and extends into August. Green treefrogs tend to congregate in extremely large groups.  At night, males begin calling just before dark. The male’s call is a harsh, nasal “quank-quank-quank . . .” repeated about once per second. From a distance, these calls sometimes sound bell-like, which accounts for the local name “cowbell frog.”  Females are attracted to the male’s location in a swamp, pond, or other water source where they deposit their eggs, 10 to 20 at a time in a jelly like envelope that is attached to floating or submerged vegetation. Females may lay up to 400 eggs. Fertilization takes place externally. Calling and egg-laying are particularly frequent after rainstorms. Larvae hatch in about a week, with tadpoles metamorphosing into adults 55 to 63 days after hatching.

Adults are opportunistic feeders, eating a variety of insects and small arthropods. They are often seen on houses around windows or exterior lights searching for insects. Tadpoles feed on algae.

Other wildlife we've seen in around our house:

1 comment:

Jess said...

This picture looks photoshopped or manipulated in some way. Sorry but I don't buy it.