Frog Spawning Activity with Temperature
Image
From: Kerri L. Oseen1, and Richard J. Wassersug, "Environmental factors influencing calling in sympatric anurans," Oecologia 2002 (Download Paper PDF)
Frog Calls
American Toad | Image  |
| American Toad Vocal Sac | Image  |
| Bullfrog | Image  |
| Gray Tree Frog | Image  |
| Gray Treefrog vocal sac | Image  |
| Green Frog | Image  |
| Northern Leopard Frog | Image  |
| Spring Peeper | Image  |
| Western Chorus Frog | Image  |
| Wood Frog | Image  |
| Wood Frog Vocal Sac | Image  |
| Hibernating Wood Frogs |
