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Eurasian eagle-owl in Poland. Most owls are nocturnal or crepuscular birds of prey. Because they hunt at night, they must rely on non-visual senses. Experiments by Roger Payne [1] have shown that owls are sensitive to the sounds made by their prey, not the heat or the smell. In fact, the sound cues are both necessary and sufficient for ...
A compass rose showing the four cardinal directions, the four intercardinal directions, and eight more divisions.. The four cardinal directions, or cardinal points, are the four main compass directions: north, south, east, and west, commonly denoted by their initials N, S, E, and W respectively.
32-point compass rose. The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography.A compass rose is primarily composed of four cardinal directions—north, east, south, and west—each separated by 90 degrees, and secondarily divided by four ordinal (intercardinal) directions—northeast, southeast, southwest, and ...
Remembering the east and west marks can be more of a problem. The topmarks for east and west "follow the Sun"—the top cone points in the direction in which the Sun appears to move (rising for an east mark or setting for a west mark), while the bottom cone points in the direction in which its reflection on the ocean surface appears to move ...
The spotted eagle-owl (Bubo africanus), also known as the African spotted eagle-owl and the African eagle-owl, is a medium-sized species of owl, one of the smallest of the eagle owls. Its length is 45 cm (18 in) and its weight is from 454 to 907 grams (1.0 to 2.0 lb). It has a 100 to 140 cm (39 to 55 in) wingspan. [3]
The bird family Tytonidae, which includes the barn owls Tyto and the bay owls Phodilus, is one of the two families of owls, the other being the true owls or typical owls, Strigidae. They are medium to large owls with large heads and characteristic heart-shaped faces.
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The pearl-spotted owlet occurs in sub-Saharan Africa, particularly widespread across savanna, [6] in southern Africa, across north and central Namibia, south to southern limit of arid bushveld and woodland in south Namibia. Their occurrence continues further north through Botswana and Zimbabwe up to Sudan and west to Senegal. [8]