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The Peterson Identification System is a practical method for the field identification of animals, plants and other natural phenomena. It was devised by ornithologist Roger Tory Peterson in 1934 for the first of his series of Field Guides [1] (See Peterson Field Guides.) Peterson devised his system "so that live birds could be identified readily ...
The common reed bunting is a medium-sized bird, 13.5–15.5 cm (5.3–6.1 in) long, with a small but sturdy seed-eater's bill. The male has a black head and throat, white neck collar and underparts, and a heavily streaked brown back.
Birds of the World is a subscription-access database that aims to describe comprehensive life history information on birds. This includes: [1] Species accounts Details on taxonomy, habitat, breeding, diet, and behaviors; Family accounts; Hybrid and subspecies descriptions and photos; Migration and range maps; IUCN Conservation Status ...
Using a machine learning algorithm, we determined the dominant color of each bird photo. Let's take a look at the American kestrel, one of the smallest and most colorful falcons in the U.S.
Photo identification or photo ID is an identity document that includes a photograph of the holder, usually only their face. The most commonly accepted forms of photo ID are those issued by government authorities, such as driver's licenses , identity cards and passports , but special-purpose photo IDs may be also produced, such as internal ...
A field mark is a characteristic (e.g. in plumage) useful for species identification, usually birds. They are often used in field guides or identification keys. In a broader context, a field mark might be referred to as a character (e.g. "differential character" or "diagnostic character"). For birds this may include plumage, flight ...
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The American bushtit, or simply bushtit (Psaltriparus minimus), is a social songbird belonging to the genus Psaltriparus.It is one of the smallest passerines in North America and it is the only species in the family Aegithalidae that is found in United States; the other seven species are found in Eurasia.