Seriema photos supplementary videos and images for Oswald et al. 2022
Videos of Ellie are at top of page, Videos of Ernie are at bottom of page
A blog about our research is here:
Video 1. Red-legged seriema using Digit II to grasp.
Video 2. Red-legged seriema demonstrating prey dispatchment.

Ellie Adult female hand-reared Red-legged Seriema Cariama cristata (Linnaeus, 1766) at the Wildlife World Zoo

Figure 1. Ellie with rubber snake and key

Figure 2. Ellie standing straight

Figure 3. Red-legged seriema Digit II - sharp tip does not touch the ground

Figure 4. Red-legged seriema foot - Recurved and sharp Digit II

Figure 5. Red-legged seriema foot - Digits III and IV straighter, dulled tips

Figure 6. Red-legged seriema foot - Digits III and IV straighter, dulled tips

Figure 7. Red-legged seriema feet - Fleshy padding under Digit II

Figure 8. Red-legged seriema - Digit I as sizeable claw

Figure 9. Ellie preparing to bash plastic snake

Figure 10. Ellie grabbing keyring, pinning with Digit II

Figure 11. Foot initially stomps on ring, Digit II begins to hook

Figure 12. Digit II hook slides down ring, beak bite commences

Figure 13. Foot holding object while beak explores

Figure 14. Digit II holds keyring while beak pulls backward

Figure 15. Digit II and beak work on keyring in concert

Figure 16. Hatchling red-legged seriema

Figure 17. Hatchling red-legged seriema Digit II already sharp

Figure 18. Hatchling red-legged seriema Digit II sharp, elevated

Figure 19. Hatchling red-legged seriema Digit III and IV bear most weight

Figure 202. Hatchling red-legged seriema Digit II large, sharp

Figure 21. Ernie, male red-legged seriema parent-reared at Tracy Aviary

Figure 22. Ernie - Asymmetry of Digit II curvature

Figure 23. Ernie - Digit II strongly recurved vs Digit III

Figure 24. Ernie - Digit II held aloft by fleshy pad

Figure 25. Ernie - Left Digit II more recurved than right

Figure 26. Ernie - Red-legged seriema in stride

Figure 27. Ernie - With plastic snake for first time

Figure 28. Ernie exploring plastic snake for first time

Figure 29. Ernie throws plastic snake to substrate

Figure 30. Ernie with anole

Figure 31. Ernie positions anole by head then swallows whole

Figure 32. Ernie with mouse, Digit II pins mouse while beak pulls

Figure 33. Ernie with mouse, Digit II clearly seen pinning mouse during feeding