Adult males can show red or orange plumage. House Finches also often live near people.
Adult males can show red or orange on the head and chest. Females and young birds are brownish, with streaks on the underside.
House Finches learn songs from other birds. Researchers compared male songs recorded in western Long Island, New York, in 1975 and 2012, an interval of 37 years. The recordings included 94 individuals in 1975 and 96 in 2012, all from wild birds in the same region.
Song types had completely turned over, although about half of the syllable types appeared in both samples. Whole-song length and frequency bandwidth stayed similar. In 2012, songs were less shared among males, contained fewer syllables, and were repeated less consistently by individual birds. The study shows how learned songs in one population changed across generations.
An extinction-risk assessment has not been added yet.
Across 37 years of recordings from Long Island, song types changed while about half of the syllable types persisted. Repeated recordings from the same region can track changes in how song traditions are shared, alongside population surveys.