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Common grackle Iridescence of the grackle's feathers A juvenile common grackle stands in freshly cut grass. The common grackle (Quiscalus quiscula) is a species of large icterid bird found in large numbers through much of North America. First described in 1758 by Carl Linnaeus, the common grackle has three subspecies. Adult common grackles have ...
Flocks of black birds have been spotted in backyards and parks over the past few weeks in the Triangle, causing many of us to do a double take when we leave our homes or pass a large, grassy field.
Female, Guatemala. The great-tailed grackle or Mexican grackle (Quiscalus mexicanus) is a medium-sized, highly social passerine bird native to North and South America.A member of the family Icteridae, it is one of 10 extant species of grackle and is closely related to the boat-tailed grackle and the extinct slender-billed grackle. [2]
Migrants tend to travel away from polar and temperate zones in the winter because of low temperatures and shortage of food in their breeding areas. [1] [2] During spring migration, birds return to their breeding sites to exploit the temporary superabundance of food, allowing them to raise more young. [3]
Wildebeest migrating in the Serengeti. Migration, in ecology, is the large-scale movement of members of a species to a different environment.Migration is a natural behavior and component of the life cycle of many species of mobile organisms, not limited to animals, though animal migration is the best known type.
It is the most common form of migration in ecology. It is found in all major animal groups, including birds , mammals , fish , reptiles , amphibians, insects , and crustaceans . The cause of migration may be local climate, local availability of food, the season of the year or for mating.
The winners of the 2024 European Wildlife Photographer of the Year awards have been announced. Launched in 2001, this competition is one of the most prestigious in modern nature photography.
The black-capped chickadee is the state bird of Massachusetts. This list of birds of Massachusetts includes species documented in the U.S. state of Massachusetts and accepted by the Massachusetts Avian Records Committee (MARC). As of July 2023, there are 516 species included in the official list. Of them, 194 are on the review list (see below), six have been introduced to North America, three ...