What Does American Goldfinch Eat?
The bright yellow American Goldfinch is a familiar backyard bird that brings color and energy with its acrobatic feeding style and bubbly vocalizations. Goldfinches have adapted to thrive on a primarily vegetarian diet, with seeds comprising the majority of their nutritional intake across the seasons.
American Goldfinches are found across most of North America in open areas with seed-bearing vegetation, including meadows, fields, roadsides, orchards, and backyards. Their range spans southern Canada down through the United States into Mexico.
Some northern populations migrate south for winter while southern birds are year-round residents.
Goldfinches have slim, pointed beaks well-suited for extracting small seeds from plants and feeders. They forage actively in shrubs and trees as well as on the ground to access their favorite tiny nutritious seeds. Goldfinches are social and congregate in flocks when feeding, often vocalizing excitedly.
Let’s look at what makes up the diverse diet of American Goldfinches across seasons.
Want to learn more about birds’ food and diet:
Favorite Foods For American Goldfinch
Food | Details |
---|---|
Nyjer/thistle seed | Small black oilseed from thistles, offered at bird feeders |
Sunflower seeds | Eat both oil and black oil sunflower seeds |
Millet | Favor white proso millet seeds |
Safflower | Eat the small white seeds |
Grass and tree seeds | Seek out ripe grass and tree seeds like birch, elm, alder |
Foraging for Food
American Goldfinches forage actively while perching, clinging acrobatically to stalks and seed heads to access food. They use their slim beaks to pry seeds loose and crack them open. Goldfinches often feed in flocks, moving together from one seed source to the next.
In spring and summer, they seek out ripening seeds from annual plants like thistles, asters, sunflowers, and grasses. They are one of the few birds able to extract seeds from thistle heads. Goldfinches also feed on tree seeds like birch, maple, and alder.
In winter they rely more on seeds from perennial trees and shrubs, scouring branches for any remaining seeds. Bird feeders become important food sources in cold weather.
Winter Diet
To survive the scarcity of winter, American Goldfinches expand their diet to include buds from trees and shrubs such as maples, birches, alders, and sassafras. These woody buds provide carbohydrates and nutrients when other foods are scarce.
Goldfinches frequent bird feeders more often in winter, consuming various small seeds including Nyjer, sunflower, safflower, and millet. Backyard feeders can make the difference in helping goldfinches get through harsh winters in many regions.
Nestling Diet
Adult goldfinches feed a specialized diet to their young nestlings. Initially, the nestlings are fed regurgitated seeds that have been softened in the adult’s crop. As they grow, the nestlings transition to whole seeds and small insects including aphids, caterpillars, beetles, and ants. The protein from insects helps fuel the rapid growth and development of fledglings.
Frequently Ask Questions
01. What are the goldfinches’ favorite foods from feeders?
Goldfinches are very fond of Nyjer or thistle seed offered in mesh feeders, which they can easily extract with their pointed bills. They also readily eat various small sunflower seeds.
02. Do goldfinches eat fruits?
Occasionally goldfinches will sample berries and other fruits such as mulberries, wild cherries, grapes, and raspberries, but these make up a very small portion of their overall diet.
03. How much do goldfinches eat per day?
Goldfinches consume approximately 1/2 to 1 ounce of food per day. Their high metabolism requires frequent foraging over many hours daily to meet energy needs.
04. How do you attract goldfinches to your feeders?
Offer nyjer/thistle seed in fine mesh feeders. Also, provide sunflower seeds either in feeders or scattered on the ground. Have nearby small seed-bearing plants that produce abundance through seasons.
Conclusion
The lively American Goldfinch thrives on a diverse diet of small nutrient-rich seeds from annual and perennial plants. By catering to goldfinches’ love of thistle, sunflower, millet, and other small seeds, we can help provide the food these birds rely on year-round.
A backyard filled with their flashing yellow plumage and cheerful calls is an excellent reminder to make our landscapes goldfinch-friendly. With thoughtful gardening and feeding practices, the American Goldfinch will remain a regular vibrant visitor for all to enjoy.
References
- The Cornell Lab of Ornithology – “American Goldfinch Diet”
- The Audubon Society – “American Goldfinch Feeding” https://www.audubon.org/field-guide/bird/american-goldfinch
- The Birds of North America – “American Goldfinch Foraging and Diet”