Females have colorful worm-like patterns of green and black mottling on the back. Adult males may have enlarged thumbs or thumb pads. Frogs under 20 g cannot be sexed. Adult males have enlarged thumbs and thumb pads. Bdeb - Males have a dark throat patch.
Females have a yellow or cream throat.
Hare - Male throat is gray, brown, black, or dusky. However, we found adults that had all female characteristics but also emitted release calls. Hence, we did not use release calling to determine sex. Amphibians collected for contaminant analyses should be placed in the cooler with ice packs and then transfered to a freezer upon your return to the laboratory. At the end of the night driving survey, record air temperature, wind speed, sky code, and time.