The Nicaraguan Seed-Finch is one of Costa Rica’s biggest finches species, only surpassed by the Wedge-tailed Grass-Finch, which is even rarer and has a longer tail. It looks similar to the Thick-billed Seed-Finch, with the male being uniformly black and the female uniformly brown, albeit with a bigger size. Their bills are undoubtely specialized for breaking down seeds and the male’s bill is particularly conspicuous, given its pink coloration. In Costa Rica, it can be found in lowland areas of the northern area, near the border with Nicaragua, and in a thin strip along the eastern coast of the Caribbean.
The White-collared Seedeater is very similar in shape to the common Variable Seedeater, and the male particularly resembles the Pacific race of the latter species. As with most seedeaters, the female is brown, but with a lighter color than other species. The male has a wide white collar around the neck, while the Pacific race of the Variable Seedeater has a thin line that does not join in the back of the neck and shows a black throat. The White-collared has wing bars, which no other seedeater in Costa Rica posses. Both species can be readily found in open pastures, where they share their main habitat and compete for food, specially grass seeds. Seedeaters tend to not gain the attention of most birders, but I believe this is the most beautiful seedeater species that we can see in Costa Rica. This individual stood on the fence wire as we drove through Boca Tapada; the picture was taken from the car window.
The Yellow-bellied Seedeater seems to be a bad name for a species that has a white belly. In a true seedeater fashion, it is found eating seeds from the grass. Its upperside is gray, with a darker head. Its pale bill is short but very strong, enabling it to crack bigger seeds. It shows some dark patches on the flanks and on the separation of throat and chest.