Rufous-fronted Thornbird
Phacellodomus rufifrons
The rufous-fronted thornbird is 16 to 17 cm (6.3 to 6.7 in) long and weighs about 18 to 31 g (0.63 to 1.1 oz). The sexes have the same plumage. Adults of the nominate subspecies P. r. rufifrons have a dull buff supercilium that continues past the eye, a dark brown stripe behind the eye, and dark grayish lores on an otherwise pale buff-brown face. Their forehead ("front") is dark rufous and their crown dark brownish with some paler streaks. Their upperparts are a slightly lighter dark brown. Their wings are mostly dull brown with darker brown primary coverts. Their tail is dull brown. Voice: The rufous-fronted thornbird's song is a "rather unstructured series of very high, mewing 'stjew' notes, rising, falling, and repeating". Its calls include an "extr. high, sharp 'sipsipsip-sip-' " and "a sharp 'chip' or 'chek, or a metallic 'tsi'.
ID text from Wikipedia, CC BY-SA 4.0

Scimitar-billed Woodcreeper
Drymornis bridgesii
The scimitar-billed woodcreeper is 26 to 35 cm (10 to 14 in) long and weighs 76 to 110 g (2.7 to 3.9 oz). It is a large woodcreeper with a relatively short tail and a long decurved bill. The sexes have the same plumage. Adults have dark rufous ear coverts and a white supercilium and moustachial stripe. Their forehead, crown, and nape are rufous to dark brown, with the nape being slightly lighter with white flecks. Their back, scapulars, and most wing coverts are cinnamon-brown to reddish brown. Their rump, uppertail coverts, and tail are rufous. Voice: The scimitar-billed woodcreeper's song is a "downslurred, decelerating series of upslurred whistled notes...tweedle tweedle tweed twee twee". It also sings "an almost level series of overslurred whistled notes...jli jli jli jli jli". Its calls include "sik, tsis-sik, or tsis-sik-sik" and a thrice-repeated "cheedle". Pairs sometimes sing in duet.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Rufous-fronted Thornbird and Scimitar-billed Woodcreeper.