MALE BLACK-THROATED BLUE WARBLER, PRESQU'ILE PROVINCIAL PARK,BRIGHTON,ON, 9/14/2019

         Even though these two photos aren't the greatest, we can still ID this warbler as a male Black-throated Blue Warbler as follows:

• Small white patch on wing.  This is a key field mark of the Black-throated Blue Warbler.
• Bluish back (see first photo)
• Dark crown, face and sides.  This is consistent with actual colors: midnight blue crown and black face and sides.
• Whitish underparts
• Merlin bird photo ID app identified this warbler as possibly a Black-throated Blue Warbler and one other warbler, which was easily eliminated.
  
     Unlike other warblers that molt into "confusing fall plumage", the male Black-throated Blue Warbler keeps its distinctive black-and-blue plumage all year.  Female Black-throated Blue Warblers are so different from the male that they were once considered a separate species.  They do however have the distinctive white wing patch.
  
     The Black-throated Blue Warbler is a new species to our Photographic Life List, which now stands at 920.