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Plants generally make up the larger part of a bird's diet, especially during autumn migration and in the winter. [80] [81] The mallard usually feeds by dabbling for plant food or grazing; there are reports of it eating frogs, other amphibians, and fish, including carcasses.
mtDNA control region sequence data indicates that these birds are derived from ancestral American black ducks, being far more distantly related to the mallard, and that the two subspecies, as a consequence of their rather limited range and sedentary habits, are genetically well distinct already. [7] The Florida mottled duck (A. f. fulvigula)
An example is the migration of continental populations of Swainson's thrush Catharus ustulatus, which fly far east across North America before turning south via Florida to reach northern South America; this route is believed to be the consequence of a range expansion that occurred about 10,000 years ago. Detours may also be caused by ...
The 2024 Wisconsin breeding waterfowl survey showed an 8% drop in mallards and a 4% decline in total ducks from 2023 estimates. ... The Mississippi River flyway is a migration route followed by ...
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CHICAGO — Bird migration is on the rise, and so are window collisions. As temperatures slowly drop in Chicago, 300 millions to 400 million birds are crossing the continent heading south to their ...
The northern mockingbird is the state bird of Florida. This list of birds of Florida includes species documented in the U.S. state of Florida and accepted by the Florida Ornithological Society Records Committee (FOSRC). As of November 2022, there were 539 species included in the official list. [1]
Most hummingbirds migrate in the winter to Central America or Mexico, but some hummingbirds spend the winter on the Gulf Coast and may be found in South Texas and South Louisiana during mild winters.