Tui De Roy / Small ground finch (Geospiza fuliginosa) feeding on buds. Santa Cruz Island, Galapagos, November.

Tui De Roy / Small ground finch (Geospiza fuliginosa) chick perched. Santa Cruz Island, Galapagos, November.

Tui De Roy / Small ground finch (Geospiza fuliginosa) feeing on flower. Santa Cruz Island, Galapagos, November.

Tui De Roy / Small ground finch (Geospiza fuliginosa) feeding on flower spike. Santa Cruz Island, Galapagos, November.

Tui De Roy / Small ground finch (Geospiza fuliginosa) nest on branch. Santa Cruz Island, Galapagos, June.

Tui De Roy / Small ground finch (Geospiza fuliginosa) opening seed with beak. Santa Cruz Island, Galapagos, December.

Tui De Roy / Small ground finch (Geospiza fuliginosa) with seed in beak. Santa Cruz Island, Galapagos, June.

John Abbott / Small Ground Finch (Geospiza fuliginosa) feeding on ectoparasites on skin of Marine Iguana (Amblyrhynchus cristatus) James Bay, Santiago Island, Galapagos

John Abbott / Small ground finch (Geospiza fuliginosa) female, Genovesa Island, Galapagos

Pete Oxford / Small Ground Finch (Geospiza fuliginosa) being measured for Avian pox research, Puerto Ayora, Santa Cruz Island, Galapagos, endemic

Pete Oxford / Small Ground-Finch (Geospiza fuliginosa), Puerto Ayora, Santa Cruz Island, Galapagos Islands, Ecuador

Tui De Roy / Small Ground-Finch (Geospiza fuliginosa) female, Galapagos Islands, Ecuador