| Common Name | Scientific name |
|---|---|
| Marsh Warbler | Acrocephalus palustris |
| Sedge Warbler | Acrocephalus schoenobaenus |
| Eurasian Reed Warbler | Acrocephalus scirpaceus |
| Common Sandpiper | Actitis hypoleucos |
| Spotted Sandpiper | Actitis macularius |
| Clark's Grebe | Aechmophorus clarkii |
| Western Grebe | Aechmophorus occidentalis |
| Long-tailed Tit | Aegithalos caudatus |
| Northern Saw-whet Owl | Aegolius acadicus |
| Boreal Owl | Aegolius funereus |
| Unspotted Saw-whet Owl | Aegolius ridgwayi |
| Cinereous Vulture | Aegypius monachus |
| Mariana Swiftlet | Aerodramus bartschi |
| White-throated Swift | Aeronautes saxatalis |
| Crested Auklet | Aethia cristatella |
| Parakeet Auklet | Aethia psittacula |
| Least Auklet | Aethia pusilla |
| Whiskered Auklet | Aethia pygmaea |
| Agami Heron | Agamia agami |
| Fischer's Lovebird | Agapornis fischeri |
| Yellow-collared Lovebird | Agapornis personatus |
| Rosy-faced Lovebird | Agapornis roseicollis |
| Red-shouldered Blackbird | Agelaius assimilis |
| Tawny-shouldered Blackbird | Agelaius humeralis |
| Red-winged Blackbird | Agelaius phoeniceus |
RingBase adheres to EURING codes.
