Turn the sound on for this one! Some species are easier heard than seen, like the endangered Houston toad. To find this species in East-Central Texas, biologists and savvy landowners use a “chorus survey” to listen for their high-pitched, whistle-like trill. These surveys are not easy to plan, as the Houston toad’s song can only be heard on a few warm nights during its breeding season January through June. Audio of a Houston toad’s high pitched breeding call by Herpetology Collection, UT Austin

Meet the Houston toad! 🐸 Did you know this rare amphibian used to call Houston home? Over time, urban growth pushed these toads west toward Bastrop, TX, but we're working hard to increase their populations in the wild. Our Zoo team is on a mission to protect and restore this endangered Texas native in the wild. Hear more from Brittanie, one of our Herpetology keepers, working to help this amphibian make a comeback. | Houston Zoo