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The common loon or great northern diver (Gavia immer) is a large member of the loon, or diver, family of birds. Breeding adults have a plumage that includes a broad black head and neck with a greenish, purplish, or bluish sheen, blackish or blackish-grey upperparts, and pure white underparts except some black on the undertail coverts and vent.
Gaviiformes (/ ˈ ɡ æ v i. ɪ f ɔːr m iː z /) is an order of aquatic birds containing the loons or divers and their closest extinct relatives. Modern gaviiformes are found in many parts of North America and northern Eurasia (Europe, Asia and debatably Africa), though prehistoric species were more widespread.
Gaǥeit is named after the common loon (kagit). [42] The common loon is the provincial bird of Ontario and is depicted on the Canadian one-dollar coin, which has come to be known affectionately as the "loonie". [43] The common loon is the official state bird of Minnesota. [44] Mercer, Wisconsin, promotes itself as the "Loon Capital of the World ...
The common loon is a symbol of the Northwoods, its mournful call evoking images of warm summer days away from the hustle of daily life. But the real-life birds may be in jeopardy, according to a ...
These are also commonly referred to as levels of analysis. [1] It suggests that an integrative understanding of behaviour must include ultimate ( evolutionary ) explanations, in particular: behavioural adaptive functions
— An $18.5 million facility dedicated to the state bird is expected to break ground this fall and draw 200,000 visitors annually once doors to the Nation Loon Center open here in 2026.
Vegavis was the size of a mallard but did not have a bill like a duck. It instead had a spear-shaped beak like a loon. Its skeletal structure indicates that it dove for its dinner.
The experimental analysis of behavior is a science that studies the behavior of individuals across a variety of species. A key early scientist was B. F. Skinner who discovered operant behavior, reinforcers, secondary reinforcers, contingencies of reinforcement, stimulus control, shaping, intermittent schedules, discrimination, and generalization.