Red-throated Caracara Ibycter americanus

  • Order: Falconiformes
  • Family: Falconidae
  • Monotypic
  • Authors: Courtney Davis and Sean McCann
Sections

Appearance

Distinguishing Characteristics

Red-throated Caracara is a large, long tailed raptor. The plumage is primarily black, with white lower underparts (belly, flanks, and undertail coverts). The face and throat of this caracara are bare; the exposed skin usually is red but may also appear rosy or purple. The cera is bluish gray, and the stout tarsi and toes are bright orange.

Similar Species

Red-throated Caracara has very distinctive appearance and behavior, and is unlikely to be confused with other species. Black Caracara (Daptrius ater) of northern South America is somewhat similar, but is smaller and more slender, is all black, has bright orange or yellow (not red) facial skin, and has a white band across the base of the tail.

Detailed Description

The following description is based on Blake (1977); see also Friedmann (1950) and Wetmore (1965):

Adult: Sexes similar. The plumage is mainly black, glossed with steely blue or greenish. The belly, undertail coverts, and tibial feathers are white. The skin of the face and throat is bare(see Bare Parts), with a few black bristles on the throat. The sides of the head are obscurely streaked with grayish white.

Immature: Plumage similar to adult, but lacking the grayish streaks on the auriculars.

Molts

No information is currently known about this species' molting strategy.

Bare Parts

Iris: deep red, reddish orange, red

Bare skin of face and throat: deep red, orange red, deep vermilion

Cere: light blue dark neutral gray, plumbeous

Bill: base of mandible gray, rest of bill honey yellow, bright yellow, straw yellow, yellow

Tarsi and toes: coral red, reddish orange, vermilion

Bare parts color data from Friedmann (1950), Wetmore (1965), and Haverschmidt (1968)

Measurements

Total length: 48-56 cm (Hilty and Brown 1986, Hilty 2003), 51-56 cm (Ridgely and Greenfield 2001b), 53 cm (Stiles and Skutch 1989), 53.5-63.5 cm (Howell and Webb 1995)

Linear measurements (from Blake 1977; see also Friedmann 1950):

male

wing length: mean 355.5 mm (range 323-418 mm; n = 34)

tail length: mean 249.6 mm (range 211-296 mm; n = 34)

bill length (culmen from cere): mean 25 mm (range 22-27 mm; n = 26)

tarsus length: mean 54.1 mm (range 52-57.5 mm; n = 10)

female

wing length: mean 359.3 mm (range 331-420 mm; n = 19)

tail length: mean 253.1 mm (range 227-291 mm; n = 19)

bill length (culmen from cere): mean 25.8 mm (range 22.9-28 mm; n = 16)

tarsus length: mean 56.2 mm (range 53.4-60 mm; n = 7)

Mass: mean 624 g (n = 3, range 586-665 g, sexes combined; Dunning 2008); male, mean 532 g (range 500-570 g, n = 4; Haverschmidt and Mees 1994); female, mean 612 g (range 560-677 g, n = 3; Haverschmidt and Mees 1994)

Recommended Citation

Davis, C. and S. McCann (2014). Red-throated Caracara (Ibycter americanus), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/nb.retcar2.01