| Species | Age group | Leg color |
| Heermann's | Adult | Black |
| Black-legged Kittiwake | Adult | Black, short |
| Glaucous | Adult | Pink |
| Glaucous-winged | Adult | Pink |
| Glaucous-winged-Western Hybrid | Adult | Pink |
| Herring | Adult | Pink |
| Slaty-backed | Adult | Pink |
| Thayer's | Adult | Pink |
| Western | Adult | Pink |
| Bonaparte's | Adult | Pink/red |
| California | Adult | Yellow |
| Mew | Adult | Yellow |
| Ring-billed | Adult | Yellow |