Life history

Similar topics in Freebase

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  Passerine

  A passerine is a bird of the order Passeriformes, which includes more than half of all bird species. Sometimes known as perching birds or, less accurately, as songbirds, the passerines form one of the most diverse terrestrial vertebrate orders: it is roughly twice as diverse as the largest of the...
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  Anatomy

  Anatomy (from the Greek ἀνατομία anatomia, from ἀνατέμνειν ana: separate, apart from, and temnein, to cut up, cut open) is a branch of biology and medicine that is the consideration of the structure of living things. It is a general term that includes human anatomy, animal anatomy (zootomy) and...
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  Bird

  Birds (class Aves) are winged, bipedal, endothermic (warm-blooded), vertebrate animals that lay eggs. There are around 10,000 living species, making them the most numerous tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Birds range in size from the...
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  Ageing

  Ageing (British English) or aging (American and Canadian English) is the accumulation of changes in an organism or object over time. Ageing in humans refers to a multidimensional process of physical, psychological, and social change. Some dimensions of ageing grow and expand over time, while others...
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  Baird's Sparrow

  The Baird's Sparrow, Ammodramus bairdii, is a small North American sparrow. These birds have a large bill, a large flat head, and a short forked tail. They have brown upper parts and white underparts, with streaking on the back, breast, and flanks. The face, nape, and crown stripe are yellowish....
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  Chestnut-collared Longspur

  The Chestnut-collared Longspur, Calcarius ornatus, is a small ground-feeding bird from the family Emerizidae which also contains the American sparrows. These birds have a short conical bill, a streaked back and a white tail with a dark tip. In breeding plumage, the male has black underparts, a...
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  Sprague's Pipit

  Sprague's Pipit (Anthus spragueii) is a small passerine bird that breeds in the short and mixed-grass prairies of North America and overwinters in the southwestern United States and northern Mexico. Easiest to identify by the distinctive descending call that is delivered in the breeding season from...
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  Grasshopper Sparrow

  The Grasshopper Sparrow, Ammodramus savannarum, is a small sparrow. The Ammodramus genus of 11 species inhabit grasslands and marshes. Adults have upperparts streaked with brown, grey, black and white; they have a light brown breast, a white belly and a short brown tail. Their face is light brown...

• Identification

  The function of identification is to map a known quantity to an unknown entity so as to make it known. The known quantity is called the identifier (or ID) and the unknown entity is what needs identification. A basic requirement for identification is that the ID be unique. IDs may be scoped, that is...

• Patuxent Bird Identification Infocenter