Barred Forest Falcon
Micrastur ruficollis
The barred forest falcon is 31 to 39 cm (12 to 15 in) long. Males weigh 144 to 184 g (5.1 to 6.5 oz) and females 200 to 322 g (7.1 to 11.4 oz). Adults of most subspecies are typically dark slate gray above; the tail is tipped with white and has three to six narrow white bars. The throat is pale gray, shading to the darker slate of the crown. The rest of the under parts, including the under-wing coverts, are white, finely and clearly barred with black or dark gray. The upper breast is a darker gray. The primary remiges are dark brownish-gray with off-white bars on the inner webs. Subspecies, M. Voice: The barred forest falcon's "advertising call" is "a somewhat dog-like, monotonous yapping, "keyak", "ark" or similar". Another call is a "bouncing-ball series..."cah cah cah-cah-cah", or similar". Neighboring males spar when one gives "a rapid, swelling chitter and the other a rapid clucking".
ID text from Wikipedia, CC BY-SA 4.0
Red-throated Caracara
Ibycter americanus
Males average 20.1 in (51 cm) long, while females average 22.1 in (56 cm); they are distinguished from the black caracara by larger size and plumage that is mainly black, with the belly, tail feathers, and undertail feathers being white. Both their faces and throats are bare, with a few black feathers scattered on the throat; the exposed skin is red. Both male and female red-throated caracaras are similar in appearance. Males have a wing length of 35.55 cm, a tail length of 24.96 cm, a bill length of 2.5 cm, and a tarsal length of 5.41 cm. Females have a wing length of 35.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
Learn this pair in the BeakBrain App
Photo and call practice. Coming soon to iPhone and Android.
Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Barred Forest Falcon and Red-throated Caracara.