Resultado de búsqueda
Hace 4 días · Abstract. Our aim was to describe shifts in autumn and winter harvest distributions of three species of dabbling ducks (blue-winged teal [ Spatula discors ], mallard [ Anas platyrhynchos ], and northern pintail [ Anas acuta ]) in the Central and Mississippi flyways of North America during 1960–2019.
Hace 2 días · The snowy owl is a very large owl. [6] They are the largest avian predator of the High Arctic and one of the largest owls in the world. [7] Snowy owls are about the sixth or seventh heaviest living owl on average, around the fifth longest and perhaps the third longest winged.
Hace 2 días · The house sparrow is a compact bird with a full chest and a large, rounded head. Its bill is stout and conical with a culmen length of 1.1–1.5 cm (0.43–0.59 in), strongly built as an adaptation for eating seeds. Its tail is short, at 5.2–6.5 cm (2.0–2.6 in) long.
Hace 4 días · Here, we explored the selective effect of winter weather on black-throated tit’s (Aegithalos concinnus) morphological traits under winters with and without severe snowstorms. We found that for males, the sizes of their bills, heads and wings significantly affected their overwinter survival, but the effects varied with winter ...
Hace 5 días · Have you ever wondered, where do hummingbirds go in the winter? Unlock the secrets of their captivating winter journey with our comprehensive guide.
Hace 3 días · It breeds from Europe (except Spain) to Kazakhstan and Inner Mongolia in China. Those migrating in winter season winter in southern Iran and the Bohai coast. In Japan, some birds kept as pets have become wild, and in some areas, such as Teganuma, Chiba Prefecture, as many as 200 birds breed.
Hace 1 día · Birds tend to migrate northward in spring, but seasonal timing, weather, and geography alter their flight directions and speeds. Altitude Migrating birds regularly fly up to 10,000 feet above ground, although seasonal timing and weather conditions dramatically impact their distributions.
