House Finches are ground foragers, although they will come to bird feeders. They eat almost exclusively plant materials, including seeds, buds, and fruit. While they don’t display the seasonal flexibility in diet that red-bellied woodpeckers or American robins do, they adapt to local conditions, eating whatever plant foods are available.
House Finches breed from late March through early August. Females use stems, leaves, rootlets, twigs, feathers, and string to build cup nests, which they line with soft materials, including more grass, rootlets, and hair. They lay two to six pale blue finely speckled eggs per clutch and produce up to six broods per year. Females incubate eggs for 13-14 days and young stay in the nest for 12-19 days before fledging. Males and females care for young.
Bird Range Maps of North America
Ridgely, R.S., T.F. Allnutt, T. Brooks, D.K. McNicol, D.W. Mehlman, B.E. Young, and J.R. Zook. 2003.
Digital Distribution Maps of the Birds of the Western Hemisphere, version 1.0. NatureServe, Arlington, Virginia, USA. Data provided by NatureServe in collaboration with Robert Ridgely, James Zook, The Nature Conservancy – Migratory Bird Program, Conservation International – CABS, World Wildlife Fund – US, and Environment Canada – WILDSPACE.
Web Link: http://bit.ly/2ynPQ5I
The Cornell Lab of Ornithology Birds of North America: https://birdsna.org/Species-Account/bna/species/houfin/introduction