Olivrücken-Zwergspecht

Bestimmung

The olivaceous piculet is 8.5 to 10 cm (3.3 to 3.9 in) long and weighs 10 to 15 g (0.35 to 0.53 oz). Adult males of the nominate subspecies P. o. olivaceus have a black crown and nape with red tips on the feathers of the front and top and white spots on the rest. Their face is mostly brown with white feather tips. Their upperparts are olive-brown with a yellow tinge. Their flight feathers are dark brown with yellow to yellow-green edges. Their tail is brown; the innermost pair of feathers have pale buff or yellowish inner webs and the outer two pairs a pale buff or yellowish stripe. Their chin and throat are buff to yellowish white with a fine darker scaly appearance. Their underparts are yellowish brown on the breast becoming buffish white to dull yellowish on the belly; the belly and flanks have wide but variable brownish streaks. Their iris is dark brown, the beak black with a gray base to the mandible, the bare skin around the eye gray to blue-gray, and the legs gray with a green or blue tinge. Adult females are identical but with white spots on the whole crown and no red. Juveniles are duller and browner than adults and sometimes have paler and more heavily streaked underparts.<p>The other subspecies have some differences from the nominate. P. o. dimotus has more of a greenish tinge to the upperparts, is paler and more olive below, and has yellow-orange tips on the crown feathers. P. o. flavotinctus has darker and more olive upperparts, more olive underparts, and yellow on the crown. P. o. eisenmanni has much yellower upperparts, a pale yellowish olive breast and yellow belly, and orange to yellow on the crown. P. o. tachirensis has green-tinged upperparts and orange to yellow on the crown. P. o. harterti is a darker olive overall with yellow to golden on the crown.

Taxonomie

The olivaceous piculet has these six subspecies:<p>The olivaceous piculet and the grayish piculet (P. granadensis) were at one time considered to be conspecific and are now treated as sister species. The "evidence for treatment as separate species is weak". Some authors have proposed splitting each of subspecies flavotinctus and olivaceous into two subspecies but those changes have not been accepted.

Wissenschaftlicher Name

Picumnus olivaceus

Autorität

Lafresnaye, 1845

Ordnung

Piciformes

Familie

Picidae

Gattung

Picumnus

Verbreitung und Lebensraum

The subspecies of the olivaceous piculet are found thus:<p>The olivaceous piculet inhabits a wide variety of landscapes including the edges of rainforest and cloudforest, drier forest, more open woodlands, secondary forest, plantations, and gardens. It shuns the interior of mature forest. In most of its range it is a bird of the lowlands but reaches 500 m (1,600 ft) in Guatemala and Honduras, 1,400 m (4,600 ft) in Costa Rica, 1,600 m (5,200 ft) on Panama's Pacific slope, 2,300 m (7,500 ft) in Venezuela, 1,800 m (5,900 ft) in Colombia, and 900 m (3,000 ft) in Ecuador.

Zugverhalten

Standvogel

Verhalten

Zugverhalten: Standvogel.

Schutzstatus

Bestandstrend: rückläufig.

Bestandstrend

rückläufig