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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 ...
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.
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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]
Mallard: Anas platyrhynchos: Anatidae: 6,400 metres (21,000 feet) This height was recorded over Nevada; [1] [4] [5] This record occurred when a Lockheed L-188 Electra turboprop airliner operating a Western Airlines flight suffered a bird strike at cruising altitude. [8] Bar-tailed godwit: Limosa lapponica: Scolopacidae: 6,000 metres (20,000 ...
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