Relationships
Larks are a well-defined family, partly because of the shape of their tarsus (Ridgway 1907). They were long placed at or near the beginning of the songbirds or oscines (now often called Passeri), just after the suboscines and before the swallows, for example in the American Ornithologists' Union's first check-list (American Ornithologists' Union 1886, according to Patterson 2002). Some authorities, such as the British Ornithologists' Union (Dudley et al. 2006) and the Handbook of the Birds of the World, adhere to that placement. However, many other classifications follow the Sibley-Ahlquist taxonomy in placing the larks in a large oscine subgroup Passerida (which excludes crows, shrikes and their allies, vireos, and many groups characteristic of Australia and southeastern Asia). For instance, the American Ornithologists' Union places larks just after the crows, shrikes, and vireos. At a finer level of detail, some now place the larks at the beginning of a superfamily Sylvioidea with the swallows, various "Old World warbler" and "babbler" groups, and others (Barker et al. 2002, Alström et al. 2006).
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