Sergio Bitran M:
Grasshopper Sparrow, Ammodramus savannarum. Tumbarrocío. Gorrion del saltamontes.
Sergio Bitran M:
Gorrion macho, Passer domesticus domesticus, House sparrow.
Sergio Bitran M:
Gorrion hembra. Passer domesticus domesticus, House sparrow.
Sergio Bitran M:
Gorrion macho, Passer domesticus domesticus, House sparrow.
Sergio Bitran M:
Savannah Sparrow (Passerculus sandwichensis)
Sergio Bitran M:
Savannah Sparrow (Passerculus sandwichensis)
Sergio Bitran M:
Savannah Sparrow (Passerculus sandwichensis)
Sergio Bitran M:
CHINCOL AUSTRAL (Zonotrichia capensis australis), Rufous-collared Sparrow
Sergio Bitran M:
CHINCOL AUSTRAL (Zonotrichia capensis australis), Rufous-collared Sparrow
Sergio Bitran M:
CHINCOL PERUANO (Zonotrichia capensis peruviensis), Rufous-collared Sparrow
Sergio Bitran M:
CHINCOL PERUANO (Zonotrichia capensis peruviensis), Rufous-collared Sparrow
Sergio Bitran M:
CHINCOL PERUANO (Zonotrichia capensis peruviensis), Rufous-collared Sparrow
Sergio Bitran M:
CHINCOL (Zonotrichia capensis chilensis), Rufous-collared Sparrow
Sergio Bitran M:
CHINCOL (Zonotrichia capensis chilensis), Rufous-collared Sparrow
Sergio Bitran M:
CHINCOL (Zonotrichia capensis chilensis), Rufous-collared Sparrow
Sergio Bitran M:
CHINCOL (Zonotrichia capensis chilensis), Rufous-collared Sparrow
Sergio Bitran M:
CHINCOL (Zonotrichia capensis chilensis), Rufous-collared Sparrow
Sergio Bitran M:
Half-collared Sparrow. Tico-tico-do-mato. Cerquero semiacollarado. Arremon semitorquatus.
Sergio Bitran M:
Black-striped Sparrow. Chingolo negrilistado. Arremonops conirostris.
Sergio Bitran M:
Shelly´s Rufous Sparrow. Gorrión de Shelley. Passer shelleyi.
Sergio Bitran M:
Northern Grey-headed Sparrow. Gorrion gris. Passer griseus.
Sergio Bitran M:
Song Sparrow. Chingolo Cantor. Melospiza melodia.
Sergio Bitran M:
Eurasian Tree Sparrow. Gorrión molinero. Passer montanus.