Bulletin 14 - July 1981: Bird Recordings on Zirku Island, 1981



Bird Recordings on Zirku Island, 1981

by Ian Fraser

Zirku Island is approximately 150 Kms. WNW of Abu Dhabi Island, and is visible to the South from Das. It was once a renowned sanctuary for Cormorants but since 1978 ZADCO have begun to develop the island. These are the first recordings since ZADCO moved in.

Bird 24 April 29 April 15 May 29 May 5 June
Socotra Cormorant Countless nesting Nesting Nesting Approx. 25,000 Breeding season over Mostly at sea
Sooty Gull Countless Nesting,1 -2 eggs Several hundred nests, mostly 3 eggs Chicks 5 -7 days old. Approx 360 breeding pairs Numerous chicks under attack from terns
Bridled Tern Countless Countless. Early signs of breeding 100+ nests all with eggs. Estimate 1000+ nests throughout island. Egg pale sandy/greenish ting, fine brown spots, a few heavier blotches 1000+ breeding pairs. All nests one egg (one nest two eggs) Numbers increasing
White-checked Tern 18 -20 Numbers increasing Several hundred nests,2-3 eggs 450 -500 breeding pairs -
Lesser-crested Tern 7 Increasing 1000 + Decrease Decrease
Red-billed tropic bird - 5, one nest site Second nest site, impossible to determine stage Third nest found; one well-grown juvenile. Hen sitting on first two sites All 3 nests with young
Sooty Falcon 2 nesting Nesting 1 / 2 eggs One pair pursuing tern. Nest site not approached At nest -
Reef Heron - 3 1 nest at top of wadi; 4 blue eggs The four eggs have disappeared -
Grey Heron 2 2 1 - -
Whimbrel - 2 - - 1
Kestrel 1 - - - -
Hoopoe 1 - - - -
Willow warbler/Chiffchaff 14 10+ - - -
Wood (?) Warbler 1 1 - - -
Turtle dove - 1 - - 1
Palm dove - 3 1+ - -
Osprey - 1 2 - -
Red-tailed Wheatear - - 1 - -
Red-backed Strike - 1 - - -
Grey Plover - 2 - - -
Isabelline Shrike - 1 - - -
Crested lark - 1 - - -

 


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