The tide was high in the morning and so many waders came to roost at the mudflat hide, including many patch ticks for me like Asian Dowitcher, Terek Sandpiper, Sharp-tailed Sandpiper, Red Knot, Long-toed Stint and Ruddy Turnstone... And also some unusal species here, like the Broad-billed Sandpiper, the long staying Long-billed Dowitcher again, Black-tailed Godwit, Greater Sand Plover and numerous Curlew sandpiper.
Raptor migration also started here with a single Peregrine Falcon and two female Chinese Sparrowhawk.
Despite the long staying migrants, like the male Tufted Duck, male Garganey and Two-barred Warbler, some late spring or summer migrants also arrived like more Yellow and Cinnamon Bittern, and the first Indian Cuckoo for me here this season.
Anyway, not a bad day and the whole checklist is here: https://ebird.org/view/checklist/S44652898
the patch tick here - the near-threatened Asian Dowitcher, with full black and straight bill separated from breeding Bar-tailed Godwit, this individual has a longer bill which may indicate a female. Can you spot the bird?
two patch ticks here - Sharp-tailed Sandpiper and Ruddy Turnstone (where?)
several waders here, Marsh Sandpiper, Common Redshank, Common Greenshank and the target Long-billed Dowitcher. Compare to Asian, Long-billed Dowitcher is smaller and more compact, showing two-toned color bill and greenish legs, also barred flanks. Distinguish from Asian is easy but telling from the American sister species Short-billed Dowitcher is a challenge!
Cinnamon Bittern
only two coucals in Hong Kong, the reddish iris of this Greater Coucal is the best way to tell from adult Lesser Coucal.
Chinese Sparrowhawk, yellow iris indicates female (need a scope)
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