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List of bird genera concerns the chordata class of aves or birds, characterised by feathers, a beak with no teeth, the laying of hard-shelled eggs, and a high metabolic rate. Restless flycatcher in the downstroke of flapping flight
Print/export Download as PDF; Printable version; In other projects ... In this list of birds by common name 11,278 extant and recently extinct (since 1500) bird ...
Bird measurement or bird biometrics are approaches to quantify the size of birds in scientific studies. The variation in dimensions and weights across birds is one of the fundamental sources of diversity among birds, and even Within species, dimensions may vary across populations within species , between the sexes and depending on age and ...
Respirometry depends on a "what goes in must come out" principle. [6] Consider a closed system first. Imagine that we place a mouse into an air-tight container. The air sealed in the container initially contains the same composition and proportions of gases that were present in the room: 20.95% O 2, 0.04% CO 2, water vapor (the exact amount depends on air temperature, see dew point), 78% ...
Nightingale Butler Birds of Great Britain and Ireland.jpg 1,078 × 1,356; 966 KB Pachyornis.jpg 319 × 712; 114 KB Painting of a Bird - Google Art Project.jpg 3,329 × 4,578; 1.67 MB
It is a diurnal bird that can fly at 40–48 km/h (22–26 kn; 11–13 m/s), and it beats its wings 80–200 times per second, which allows it to remain stationary in the air to feed on flowers. The bee hummingbird lives up to seven years in the wild, and 10 years in captivity.
The larger American robin (Turdus migratorius) is a much larger bird named from its similar colouration to the European robin, but the two birds are not closely related, with the American robin instead belonging to the same genus as the common blackbird (T. merula), a species which occupies much of the same range as the European robin. The ...
A robin-sized bird, the dunnock typically measures 13–14.5 cm (5.1–5.7 in) in length. It has a brown back streaked blackish, somewhat resembling a small house sparrow . Like that species, the dunnock has a drab appearance which may have evolved as camouflage to avoid predation.