Scott Bowers   cc-by-nc

Alle alle (Dovekie) is a species of birds in the family auks. They are native to The Nearctic, the Palearctic, Atlantic Ocean, and Arctic Ocean. They are diurnal carnivores. Individuals can grow to 48 cm. They have parental care (pair provides care, paternal care, and female provides care). They rely on flight, swimming, and lift powered swimming to move around.

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  • URI: https://eol.org/schema/terms/lift_based_swimming
  • Definition: Hydrofoils, or fins, are used to push against the water to create a normal force to provide thrust, propelling the animal through water. The reduction of fin cross-sectional area helps to minimize drag, and therefore increase efficiency. Regardless of size of the animal, at any particular speed, maximum possible lift is proportional to (wing area) x (speed)<sup>2</sup>. Dolphins and whales have large, horizontal caudal hydrofoils, while many fish and sharks have vertical caudal hydrofoils.
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EOL has data for 43 attributes, including:

Known occurrences, collected specimens and observations of Dovekie. View this species on GBIF