| Common Name | Scientific name |
|---|---|
| Little Bustard | Tetrax tetrax |
| White-capped Albatross | Thalassarche cauta |
| Yellow-nosed Albatross | Thalassarche chlororhynchos |
| Chatham Albatross | Thalassarche eremita |
| Black-browed Albatross | Thalassarche melanophris |
| Salvin's Albatross | Thalassarche salvini |
| Cabot's Tern | Thalasseus acuflavidus |
| Great Crested Tern | Thalasseus bergii |
| Elegant Tern | Thalasseus elegans |
| Royal Tern | Thalasseus maximus |
| Sandwich Tern | Thalasseus sandvicensis |
| Crowned Woodnymph | Thalurania colombica |
| Mexican Woodnymph | Thalurania ridgwayi |
| Russet Antshrike | Thamnistes anabatinus |
| Black-crowned Antshrike | Thamnophilus atrinucha |
| Black-hooded Antshrike | Thamnophilus bridgesi |
| Barred Antshrike | Thamnophilus doliatus |
| Black Antshrike | Thamnophilus nigriceps |
| Blue-crowned Parakeet | Thectocercus acuticaudatus |
| Buff-necked Ibis | Theristicus caudatus |
| Yellow-winged Tanager | Thraupis abbas |
| Blue-grey Tanager | Thraupis episcopus |
| Palm Tanager | Thraupis palmarum |
| Band-tailed Barbthroat | Threnetes ruckeri |
| African Sacred Ibis | Threskiornis aethiopicus |
RingBase adheres to EURING codes.
