Blanchard's Cricket Frog / Rainette Grillon de Blanchard
This rough-skinned treefrog may be greenish-brown, yellow, red or black. It is
distinguished by a dark triangle between the eyes and relatively short legs. Maximum
adult size is a mere 4 cm.
The breeding call
is a rasping, or clicking, like pebbles striking each other.
Other treefrogs within its range are the Spring
Peeper, the Western Chorus Frog and
the Gray Treefrog. The Spring Peeper is
distinguished by a dark X on the back. The Western Chorus Frog has three dark
continuous or broken lines down the back. The Grey Treefrog has a light spot with
a dark border under each eye and bright orange/yellow inner thighs.
The Canadian distribution of Blanchard's Cricket Frog is now limited to Pelee Island.
It has not been heard on the mainland since 1972 and was last reported from Pelee
Island in 1987. It is more widely distributed in the central United States as far
as southern Texas.
In the past, Blanchard's Cricket Frogs have been found in natural marshes, deep
drainage ditches and abandoned quarries. In Canada it is limited to the warmest
parts of the Carolinian Zone.
Breeding does not begin until mid-summer. Individual females lay up to 400 eggs
which hatch in three to four days. Metamorphosis takes place five to ten weeks
They eat small insects. Individuals rarely live more than one or two years.
Never widespread in Canada, Blanchard's Cricket Frogs are now considered endangered
by both the federal and Ontario governments. The cause of their decline during the
1970's is unknown, however habitat degradation and pesticide contamination are known
to be problems within their range.