Greater Thornbird

The greater thornbird (Phacellodomus ruber) is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Argentina, Bolivia, Brazil, Paraguay, and Uruguay. == Taxonomy and systematics == The greater thornbird is monotypic. It and the freckle-breasted thornbird (P. striaticollis) are sister species. == Description == The greater thornbird is 19 to 21 cm (7.5 to 8.3 in) long and weighs about 35 to 51 g (1.2 to 1.8 oz). It is heaviest and reddest thornbird. The sexes have the same plumage. Adults have a mostly rufescent brown to grayish brown face with a paler supercilium and ear coverts and a whitish malar area. Their crown is reddish chestnut with pale streaks, their back rich reddish brown to olive-brown that sometimes becomes chestnut on the lower back, their rump a lighter rufescent brown, and their uppertail coverts chestnut. Their wings are a nearly uniform rufous-chestnut and their tail reddish chestnut. Their throat is whitish, their breast pale with a light brownish tinge, their belly whitish, and their undertail coverts light rufescent brown. Their iris is light yellow to orange, their maxilla blackish to dark grayish horn, their mandible pale gray to grayish green, and…