Sulawesi Crow
Corvus celebensis
Medium-sized black crow with a relatively long, slightly decurved bill. Plumage has an iridescent dark blue sheen when seen up close. Due to absence of generally more adaptable Large-billed Crow on Sulawesi, this species can be found in both intact lowland forest as well as somewhat more degraded and fragmented habitats. Often encountered as pairs or small flocks in rowing flight over roads, rivers, and clearings. Gives loud nasal caws, often with a rather dry quality. Formerly treated as part of a more generic “Slender-billed Crow” that ranged from the Philippines to Sulawesi.
Taxonomy
- Scientific name
- Corvus celebensis
- Order
- Passeriformes
- Family
- Corvidae
- Genus
- Corvus
Photos
Distribution
Bird Calls
Other Birds

Sharp-billed Treehunter
Heliobletus contaminatus
Small foliage-gleaner with a short pointed bill and long tail. Found in the canopy of montane forests including Araucaria forests where it acrobatically gleans epiphytic vegetation. Dark-brown on the back with a buffy-yellow eyebrow and collar, a heavily streaked breast, and a rufous tail. Usually follows mixed-species flocks. The song is a sharp, high rattle.

Bonaparte's Gull
Chroicocephalus philadelphia
The most common small gull through most of North America, especially inland. Breeding adults have a black head, thin white eye arcs, bright red legs, light gray upperparts, and black wingtips. Note distinctive wing pattern on adults in flight: white wedge on the leading edge of the wing, with small black tips on the outer wing feathers. Nonbreeding adults and immatures have pinkish legs and a mostly white head with black ear spot. Immatures are more heavily marked with brown and black on the wings. Breeds near water in boreal forest; the only gull that makes a stick nest in a tree. Often seen in large flocks along beaches, bays, coves, and lakes during migration and winter. Feeds on small fish and invertebrates, often gracefully fluttering around and picking them off the water surface.

Wallace's Scops-Owl
Otus silvicola
A large scops-owl restricted to Flores and Sumbawa. Grayish-brown overall. Face gray with a black facial border. Shows a dark bill, ear tufts, a dark crown, bold black streaks on paler grayish underparts, and dark brown upperparts with white wing markings. Juvenile paler, with reduced markings and rufous appearance. Inhabits canopy of forested lowlands and foothills. Larger and grayer than Flores Scops-Owl, with dark bill and forehead and black-streaked underparts. Larger than Moluccan Scops-Owl, with a different call: a single gruff “koh,” repeated often.
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