''T. r. capensis'' with two juveniles in Krishna Wildlife Sanctuary | Olea capensis | Impatiens capensis | ''Drosera capensis |
Tambillo contains similar fauna to the other sections of the reserve, including the Andean Flamingo, Chilean Flamingo, Horned Coot, Silvery Grebe, Andean Gull, Greenish Yellow Finch, Grey fox, Andean Fox, Chincol (Zonotrichia capensis), swallows, and falcons.
Afterwards, he worked on some pioneering studies of the song of the Rufous-collared Sparrow (Zonotrichia capensis).