Grey-crested Cacholote
Pseudoseisura unirufa
The grey-crested cacholote is 20 to 21 cm (7.9 to 8.3 in) long and weighs 42 to 57 g (1.5 to 2.0 oz). It is a large, crested, furnariid. The sexes have the same plumage. Adults are mostly bright reddish-rufous that is somewhat paler on their underparts. Their crest varies from entirely rufous to almost entirely grayish. The center of their throat has an orange tinge. Their flight feathers have fuscous tips and the ends of the tail feathers lack barbs. Their iris is yellow to buff-yellow, their bill blue-gray to gray with a paler mandible, and their legs and feet olive to greenish gray. Voice: The grey-crested cacholote usually sings in duet, "sustained, loud, accelerating, slightly descending 'chew' notes mixed with chattering and rattles, finishing with combined cackling". The species' call is "a single 'chuk' ".
ID text from Wikipedia, CC BY-SA 4.0
White-throated Cacholote
Pseudoseisura gutturalis
The white-throated cacholote is 22 to 23 cm (8.7 to 9.1 in) long and weighs 63 to 79 g (2.2 to 2.8 oz). It is one of the largest furnariids and has a small crest. The sexes have the same plumage. Adults of the nominate subspecies have a white eyering and lores on an otherwise dark brownish gray face. Their crown and upperparts are also dark brownish gray. Their wings are mostly the same dark brownish gray, with slightly paler edges on the coverts and flight feathers. Their tail is dark fuscous gray with slightly paler edges to the feathers; the feathers have few barbs on their ends. Voice: The white-throated cacholote's song is very loud; it reportedly carries nearly 2 km (1 mi). It is a "cacophonous explosion of variable, harsh, raucous notes" and is often sung in duet.
ID text from Wikipedia, CC BY-SA 4.0
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