Kiefernammer

Bestimmung

Bachman's sparrow (Peucaea aestivalis), also known as the pinewoods sparrow or oakwoods sparrow, is a small American sparrow that is endemic to the southeastern United States. This species was named in honor of Reverend John Bachman. Adults have rufous brown upperparts and crown with gray and black streaking on the nape, back and primaries. The face is gray with a rufous brown eyestripe. It has a buff colored breast and whitish belly. These are mid-sized New World sparrows, measuring 12.2–16.2 cm (4.8–6.4 in) and weighing 18.4–23 g (0.65–0.81 oz). Their breeding habitat is open pine forests. The domed nest is usually built on the ground near a clump of grass or a bush. Females lay three to five eggs. Bachman's sparrow is primarily a non-migratory resident, but it may retreat from some of the most northerly territories. The species is mainly a granivore, but it will also take some insects. This bird is considered near threatened by the IUCN, with habitat loss one of the major factors often cited in its decline. Habitat degradation due to later stages of forest succession has also been attributed to the decline of this species. Prescribed forest burns may assist in recovery. The primary song begins as a clear whistle, followed by a short trill.

Taxonomie

Gattung: Peucaea; Familie: Passerellidae; Ordnung: Passeriformes.

Wissenschaftlicher Name

Peucaea aestivalis

Autorität

(Lichtenstein, MHC, 1823)

Ordnung

Passeriformes

Familie

Passerellidae

Gattung

Peucaea

Verbreitung und Lebensraum

Bachman's sparrows occur primarily in the southeastern United States from the central region of peninsular Florida north to southeastern North Carolina and west through portions of Tennessee, Kentucky and Missouri to eastern Oklahoma and eastern Texas. Following forest conversion and the spread of agricultural fields up into the early 1900s, Bachman's sparrows rapidly expanded their range and began breeding in Illinois, Indiana, Ohio, West Virginia, Virginia, Maryland, and parts of Pennsylvania. However, this trend reversed during the 1930s as much of the eastern deciduous forest recovered. Bachman's sparrows are thought to have been extirpated from Virginia in the early 2000s, and North Carolina is now the northern periphery of their eastern range.<p>Among the three subspecies of Bachman's sparrow, Peucaea aestivalis aestivalis breeds furthest east, from southeast South Carolina to peninsular Florida. Peucaea a. bachmanii occurs west of P. a. aestivalis to Mississippi and north to Kentucky. P. a. illinoensis occurs in the westernmost region of the species' range.

Zugverhalten

Standvogel

Verhalten

Zugverhalten: Standvogel.

Schutzstatus

Bestandstrend: rückläufig.

Bestandstrend

rückläufig