Endangered
Great-billed seed finch
Sporophila maximiliani
Great-billed seed finch is a perching bird in the family Thraupidae (order Passeriformes) — Sporophila maximiliani, recorded as Endangered.
Appearance
The beak volume is about 840mm³. The males are black with white or white and black under wing-coverts. The females have a warm brown back and a buffy brown belly with white under wing-coverts.
It is a medium-sized finch at around 14.5–16.5 cm (5.7–6.5 in) in length. Due to their similarity with other species, sexual dimorphism, and juvenile appearance, great-billed seed finches can be very difficult to identify morphologically.
Range and habitat
The southern population is found in the Cerrado and in the Cerrado enclaves into the transition zones in Atlantic Forest. The northern population is found in the northern Amazon rainforest. Its natural habitats are subtropical or tropical moist shrubland, swamps, and heavily degraded former forest.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Breeding
Breeding season generally begins around November or December during spring and summer in central and southern Brazil and extends until the end of February or early March. Breeding in the great-billed seed finch is stimulated by the first torrential rains of spring.
During breeding season, the seed finch is especially territorial and aggressive.
In crisis
Although the population is quickly declining due to trapping and loss of habitat, not much is known about its behavior and ecology.
Great-billed seed finch is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Great-billed seed finch, Wikidata item Q28867706. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.



