Learn how to identify frog calls at this upcoming volunteer training

Friends of the Rouge want to recruit volunteers to ID the sounds of eight frog and toad species to monitor the health of the area's wetlands.

Got an ear for frog and toad calls? Iowa is seeking survey volunteers

Several times each summer, Iowans drive set routes at night and turn a discerning ear to the 16 unique frog and toad songs that can be heard in Iowa.
The Pantagraph

Grounded Living: Summer sights and sounds of frogs and toads

I’ve said it before, and I’ll say it again: Summer is my favorite season, and the past few weekends have included seeing and hearing various frogs and toads. Earlier this month I had the opportunity ...
Duluth News Tribune

Northland Nature: Pair of summer frog species are calling

A mink frog sits on a lily pad in midsummer. Note the yellow-green lip. This summer frog is very aquatic and rarely on land.
insider.si.edu

Guía sonora de las ranas y sapos de Bolivia [sound recording] = Sounds of frogs and toads of Bolivia / editado por R. Márquez ... [et al.]

Duration: 45:29 minutes. Text and color photography of each species in booklet. Presents sounds of 130 species. siris_sil_713687 ...