Audouin's Gull
Ichthyaetus audouinii
Elegant slim gull with long legs, and narrow wings. Adults have a light grey body with a paler white head. The wings are light gray with black tips, lacking conspicuous white spots. Legs are dark gray and the bill is dark red. Eyes are dark. Juveniles are similar to Lesser Black-backed Gull, with strongly barred underwings and a U-shaped white rump patch and dark tail. In their 1st winter they develop a gray-brown mantle and in their second winter the head is already white; the tail and secondaries have a black band.
Taxonomy
- Scientific name
- Ichthyaetus audouinii
- Authority
- (Payraudeau, 1826)
- Order
- Charadriiformes
- Family
- Laridae
- Genus
- Ichthyaetus
Range and habitat
- Breeding range
- PAL : e North Atlantic coast of s Portugal and Spain; coasts and islets of Mediterranean and associated seas to Cyprus and s Turkey
- Non-breeding range
- to coast of Gambia (tropical North Atlantic)
- Migration
- Complete migrants
Conservation
- Population trend
- declining
Photos
Distribution
Bird Calls
Other Birds
Natal Spurfowl
Pternistis natalensis
A medium-size brownish francolin with distinctive yellow nostrils and a bright orange-red bill and legs. The back is mottled brown, and the underpart feathers are edged brown and white, giving it a marbled scaled appearance. Juveniles are similar to adults, with duller legs and bill. It is common in savanna, preferring thicker understory. The call is a loud raucous “kak-kreek” that variably accelerates and decelerates. Red-billed Francolin differs from Natal Francolin by having barred (not scaled) underparts and a yellow eye-ring. Swainson’s Francolin differs from Natal Francolin by having red facial skin and dark blackish legs.
Bare-faced Bulbul
Nok hualon
Sickly-looking, greenish-brown bulbul with a naked pink head. Endemic to Laos, where it is found solely in limestone karst forest; favors areas with bushy cover. Forages in the canopies of shrubs and small trees. Gives a fluid rising trill and harsher rattling calls.
Bicolored Antvireo
Dysithamnus occidentalis
Small, plump antbird of Andean cloud forest. Very rare in Ecuador and northern Peru, but somewhat more common in western Colombia. Male is dark gray; female additionally has chestnut back and crown. Both sexes have white dots on wings; on some birds, these dots may form parallel lines. Inhabits understory of forest interior. Usually first detected by voice; vocalizations include soft churrs, rattles, and inflected notes given alone or in a quick series.
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