Bizzare Birds

Photographs of mystery birds, abnormally plumaged birds, deformed birds, or bizarre bird mortalities.


Cattle Egret (Bubulcus ibis): melanistic or dyed/stained
Black-faced Grassquit (Tiaris bicolor): leucistic


Mystery Martin

St. Martin

Yellow Warbler (Dendroica petechia): extensive orange wash on plumage

Trinidad & Tobago

‘Mystery Egret’ (Egretta sp.): deformed bill on Little Egret (E. garzetta) or Snowy Egret (E. thula)  [comments]
‘Mystery Egrets’ (Egretta sp.): two suspected hybrids with apparent dark feathering; one may be a white-morph Western Reef-Heron (E. gularis)
Cattle Egret (Bubulcus ibis): oiled adult
Black Vulture (Coragyps atratus): killed by collision with aircraft
‘Mystery Hawk’: Mystery hawk at Nariva Swamp,
Semipalmated Sandpiper (Calidris pusilla): orange on face
Stilt Sandpiper (Calidris himantopus): oiled individual
Laughing Gull (Larus atricilla): deformed bill
‘Mystery Gull’ (Larus sp.): suspected Yellow-legged Gull (Larus [cachinnans] michahellis]  [comments]
‘Mystery Gulls’ (Larus sp.): suspected immature Kelp Gulls (L. dominicanus), June 2000  [comments]
Common Tern (Sterna hirundo): short legs with missing foot
‘Mystery Tern’ (Sterna / Chlidonia sp.): suspected Common Tern (S. hirundo) with odd plumage  [comments]
Black Skimmer (Rynchops niger): missing most of lower bill
‘Mystery Tanager’ (Thraupis sp.): possible hybrid Blue-gray × Palm Tanager (T. episcopus × palmarum) or aberrant plumaged Palm Tanager

US Virgin Islands

Audubon’s Shearwater (Puffinus lherminieri): white undertail coverts
Zenaida Dove (Zenaida aurita): partially leucistic and slightly leucistic individuals at St. Thomas
Pearly-eyed Thrasher (Allenia fusca): leucistic individual at St. John
Bananaquit (Coereba flaveola): partially leucistic individual at St. Thomas