Bat Falcon vs Nankeen Kestrel

Bat Falcon

Falco rufigularis

Medium164 gForest

The bat falcon is 23 to 30 cm (9.1 to 12 in) long. Males weigh 108 to 150 g (3.8 to 5.3 oz) and have a wingspan of 51 to 58 cm (20 to 23 in). Females weigh 177 to 242 g (6.2 to 8.5 oz) and have a wingspan of 65 to 67 cm (26 to 26 in). They have long wings and a longish tail with a square tip. The sexes have similar plumage. Adults have blue-black head and upperparts with grayish edges on the feathers from the upper back to the uppertail coverts. Voice: The bat falcon is vocal "in breeding season, especially near nest, in contacts with other raptors, and even when attacking prey." Its main call is a "rapid shrill screaming" kee-kee-kee.. or kew-kew-kew..; the male's is higher pitched than the female's. Other calls include "an even higher and thinner "tsee-tsee-tsee...

ID text from Wikipedia, CC BY-SA 4.0

Photo: Joao Quental · CC BY 2.0

Nankeen Kestrel

Falco cenchroides

Medium170 gWoodland

The nankeen kestrel is a small, slim falcon 28 to 35 cm (11 to 14 in) long with a wingspan of 66 to 78 cm (26 to 31 in). The male weighs 121 to 195 g (4.3 to 6.9 oz) while the female weighs 115 to 273 g (4.1 to 9.6 oz). It has pale rufous upper-parts with contrasting black flight-feathers and is finely streaked white below, with a black subterminal band. The cere, eye-ring, and legs are yellow. The male has a pale grey crown and tail with a darker grey tear-mark, while the female and juvenile have a pale rufous crown and finely barred rufous tail.

ID text from Wikipedia, CC BY-SA 4.0

Photo: patrickkavanagh · CC BY 2.0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Bat Falcon and Nankeen Kestrel.