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Archive of invalidated taxa:

2021-08-06: Sitta pusilla pusilla is invalidated (synonym Sitta pusilla).

2021-08-06: Sitta pusilla insularis is invalidated (synonym Sitta insularis).

2021-08-06: Deltarhynchus is invalidated (synonym Ramphotrigon).

2021-08-06: Deltarhynchus flammulatus is invalidated (synonym Ramphotrigon flammulatum).

2021-08-06: Caracara cheriway is invalidated (synonym Caracara plancus).

2021-08-06: Pseudoscops is invalidated (synonym Asio).

2021-08-06: Pseudoscops grammicus is invalidated (synonym Asio grammicus).

2021-08-06: Pseudoscops clamator is invalidated (synonym Asio clamator).

2021-08-06: Strix varia sartorii is invalidated (synonym Strix sartorii).

2021-08-06: Phalacrocorax pelagicus is invalidated (synonym Urile pelagicus).

2021-08-06: Phalacrocorax brasilianus is invalidated (synonym Nannopterum brasilianum).

2021-08-06: Phalacrocorax auritus is invalidated (synonym Nannopterum auritum).

2021-08-06: Phalacrocorax urile is invalidated (synonym Urile urile).

2021-08-06: Phalacrocorax penicillatus is invalidated (synonym Urile penicillatus).

2021-08-06: Larus canus brachyrhynchus is invalidated (synonym Larus brachyrhynchus).

2021-08-06: Calliphlox is invalidated (synonym Philodice).

2021-08-06: Calliphlox mitchellii is invalidated (synonym Philodice mitchellii).

2021-08-06: Calliphlox bryantae is invalidated (synonym Philodice bryantae).

2021-08-06: Falcipennis is invalidated (synonym Canachites).

2021-08-06: Falcipennis canadensis is invalidated (synonym Canachites canadensis).