14 August 2024
- Added Blue Rock-thrush Monticola solitarius to the main and review lists.
18 July 2024
- Updated names, list sequence, and taxonomy to conform to the 65th supplement of the AOS Check-List
13 January 2024
- Removed Mississippi Kite Ictinia mississippiensis, White Wagtail Motacilla alba, and Cassin's Sparrow Peucaea cassinii from the review list.
04 December 2023
- Added Ainley's Storm-Petrel Hydrobates cheimomnestes to the main and review lists.
01 October 2023
- Corrected list sequence in genus Artemisiospiza.
18 September 2023
- Added Siberian Rubythroat Calliope calliope to the main and review lists.
06 July 2023
- Updated names, list sequence, and taxonomy to conform to the 64th supplement of the AOS Check-List
21 May 2023
- Added Small-billed Elaenia Elaenia parvirostris, Willow Warbler Phylloscopus trochilus, and Wood Warbler Phylloscopus sibilatrix to the main and review lists.
15 January 2023
- Removed Slaty-backed Gull Larus schistisagus and Great Crested Flycatcher Myiarchus crinitus from the review list. Added Yellow Grosbeak Pheucticus chrysopeplus to the Supplemental list.
05 August 2022
- Updated names, list sequence, and taxonomy to conform to the 63rd supplement of the AOS Check-List
29 June 2022
- Added Nanday Parakeet Aratinga nenday and Red-masked Parakeet Psittacara erythrogenys to the main list as introduced species
7 February 2022
- Corrected list sequence in genus Phylloscopus
15 January 2022
- Removed Ruddy Ground Dove, Hudsonian Godwit, Bar-tailed Godwit, Yellow-billed Loon, Masked Booby, Tricolored Heron, White-eyed Vireo, Blue-headed Vireo, Common Redpoll, Snow Bunting, Common Grackle, Worm-eating Warbler, Connecticut Warbler, Mourning Warbler, Kentucky Warbler, Cape May Warbler, and Grace's Warbler from the review list
02 January 2022
- Added Mitred Parakeet Psittacara mitratus and Lilac-crowned Parrot Amazona finschi to the main list as introduced species
20 August 2021
- Added Mexican Duck Anas diazi to the main and review lists
7 July 2021
- Updated names, list sequence, and taxonomy to conform to the 62nd supplement of the AOS Check-List
12 February 2021
- Corrected English name of Rhynchophanes mccownii to conform to the AOS Check-List
19 January 2021
- Removed Broad-billed Hummingbird Cynanthus latirostris from the review list
- Added evidence code "P" to Yellow-browed Warbler
30 June 2020
- Updated names, list sequence, and taxonomy to conform to the 61st supplement of the AOS Check-List
28 April 2020
- Added Yellow-browed Warbler Phylloscopus inornatus to the main and review lists.
20 January 2020
- Added Wood Stork Mycteria americana to the review list
- Removed Nazca Booby Sula granti from the review list
- Removed Masked/Nazca Booby Sula dactylatra/granti from the review list
- Removed Red-footed Booby Sula sula from the review list
- Removed Rusty Blackbird Euphagus carolinus from the review list
15 January 2020
- Corrected Albatross Thalassarche sp. list sequence
12 November 2019
- Corrected evidence code for Eurasian Wryneck.
- Added audio (A) evidence codes for Eurasian Skylark, Veery, and Eastern Yellow Wagtail.
8 November 2019
- Corrected Meadowlark Sturnella sp. list sequence
27 September 2019
- Added Yellow-chevroned Parakeet Brotogeris chiriri and Red-whiskered Bulbul Pycnonotus jocosus) to the main list.
30 June 2019
- Updated names, list sequence, and taxonomy to conform to the 60th supplement of the AOS Check-List
28 January 2019
- Added Gray Thrasher Toxostoma cinereum to the supplemental list.
- Added Kentucky Warbler Geothlypis formosa to the review list.
11 December 2018
- Added Eastern Meadowlark Sturnella magna to the main and review lists.
1 October 2018
- Removed evidence code "P" from Masked Booby.
- Removed evidence code "P" from Nazca Booby.
30 September 2018
- Added Tropical Parula Setophaga pitiayumi to the main and review lists.
26 June 2018
- Changed evidence code for White-winged Crossbill from "S" to "P".
22 June 2018
- Updated names, list sequence, and taxonomy to conform to the 59th supplement of the AOS Check-List
11 May 2018
- Added Band-rumped Storm-Petrel Oceanodroma castro and to the main and review lists.
- Added Citrine Wagtail Motacilla citreola to the main and review lists.
21 April 2018
- Moved Oriental Greenfinch Chloris sinica from the supplemental list to the main and review lists.
20 January 2018
- Added Kermadec Petrel Pterodroma neglecta and Jouanin's Petrel Bulweria fallax to the main and review lists.
- Removed Dusky-capped Flycatcher Myiarchus tuberculifer from the review list
16 January 2018
- Added Eurasian Wryneck Jynx torquilla to the main and review lists.
14 November 2017
- Corrected scientific names of Wedge-tailed and Sooty Shearwaters for gender agreement.
5 July 2017
- Updated names, list sequence, and taxonomy to conform to the 58th supplement of the AOS Check-List
1 February 2017
- Added Salvin's/Chatham Albatross Thalassarche salvini/Thalassarche eremita to the appended species groups on the review list.
29 January 2017
- Removed Magnificent Frigatebird Fregata magnificens from the review list
- Removed Magnificent/Great/Lesser Frigatebird Fregata magnificens/minor/ariel from the appended species groups on the review list.
- Removed Little Gull Hydrocoloeus minutus from the review list
17 January 2017
- Added Purple Sandpiper Calidris maritima to the main and review lists.
- Added Buff-breasted Flycatcher Empidonax fulvifrons to the main and review lists.
8 July 2016
- Updated names, list sequence, and taxonomy to conform to the 57th supplement of the AOU Check-List.
30 January 2016
- Added Ruddy Ground-Dove Columbina talpacoti to the review list.
13 January 2016
- Added Chatham Albatross Thalassarche eremita to the main and review lists.
- Added Kelp Gull Larus dominicanus to the main and review lists.
3 October 2015
- Added Common Scoter Melanitta nigra to the main and review lists.
2 July 2015
- Updated names, list sequence, and taxonomy to conform to the 56th supplement of the AOU Check-List
26 January 2015
- Replaced Taiga/Tundra Bean-Goose Anser fabalis/serrirostris with Tundra Bean-Goose Anser serrirostris
on the main and review lists.
- Added Taiga/Tundra Bean-Goose Anser fabalis/serrirostris to the appended species groups on the review list.
- Replaced Frigatebird sp. Fregata sp. with Magnificent/Great/Lesser Frigatebird Fregata magnificens/minor/ariel
to the appended species groups on the review list.
- Removed Blue-footed Booby Sula nebouxii from the review list.
- Removed Yellow-green Vireo Vireo flavoviridis from the review list.
- Replaced Arctic Warbler Phylloscopus borealis with Arctic/Kamchatka Leaf Warbler (Phylloscopus borealis/examinandus) on the main and review lists.
18 December 2014
- Added Salvin's Albatross Thalassarche salvini to the main and review lists.
- Added Nazca Booby Sula granti to the main and review lists.
7 August 2014
- Updated names, list sequence, and taxonomy to conform to the 55th supplement of the AOU Check-List
2 February 2014
- Added Marsh Sandpiper Tringa stagnatilis to the main and review lists.
- Added "A" to the evidence code for Eastern Whip-poor-will.
- Added Common Swift Apus apus to the main and review lists.
19 January 2014
- Removed Hawaiian Petrel Pterodroma sandwichensis from the review list.
- Removed Galapagos/Hawaiian Petrel Pterodroma phaeopygia/Pterodroma sandwichensis from the appended species pairs on the review list.
- Changed "species pairs" to "species groups" and added Frigatebird sp. Fregata sp. to the appended species groups on the review list.
- Removed Nazca Booby Sula granti from the appended supplemental list on the main list.
- Removed Neotropic Cormorant Phalacrocorax brasilianus from the review list.
- Added new category code "RI" - Reintroduction in progress - not yet established.
- Changed category for California Condor Gymnogyps californianus from E to RI on the main list.
- Removed Pine Warbler Setophaga pinus from the review list.
27 August 2013
- Added Great Black-backed Gull Larus marinus to the main and review lists.
- Added Nutmeg Mannikin Lonchura punctulata to the main list with a code of "I"
8 August 2013
- Updated names, list sequence, and taxonomy to conform to the 54th supplement of the AOU Check-List
23 April 2013
- Corrected the generic name of the Belted Kingfisher Megaceryle alcyon on the main list
7 April 2013
- Added Gray Hawk Buteo plagiatus to the main and review lists
17 March 2013
- Corrected the list sequence position of Tristram's Storm-Petrel Oceanodroma tristrami
22 January 2013
- Added Taiga/Tundra Bean-Goose Anser fabalis/Anser serrirostris to the main and review lists
- Removed Taiga/Tundra Bean-Goose Anser fabalis/Anser serrirostris from the appended species pairs on the review list
- Added Common Crane Grus grus to the main and review lists
- Added Common Cuckoo Cuculus canorus to the main and review lists
- Removed Yellow-crowned Night-Heron Nyctanassa violacea from the review list
- Removed Harris's Hawk Parabuteo unicinctus from the review list
- Removed Lesser Black-backed Gull Larus fuscus from the review list and removed its evidence code
- Removed Parakeet Auklet Aethia psittacula from the review list
- Added evidence code for Northern Gannet
27 August 2012
- Fixed a regression error introduced 23 July 2012 which inadvertently added Trumpeter Swan Cygnus buccinator
and Yellow-throated Warbler Setophaga dominica back on the review list
3 August 2012
- Added Northern Gannet Morus bassanus to the main and review lists
23 July 2012
- Updated names, list sequence, and taxonomy to conform to the 53rd supplement of the AOU Check-List
1 July 2012
- Appended Taiga/Tundra Bean-Goose Anser fabalis/Anser serrirostris to review list
12 March 2012
- Added "P" to the evidence code for Common Snipe
- Minor cosmetic changes to review list
11 March 2012
- Added Common Snipe Gallinago gallinago to the main and review lists
16 February 2012
- Added "A" to the evidence code for Common Ringed Plover Charadrius hiaticula
12 February 2012
- Added Common Ringed Plover Charadrius hiaticula to the main and review lists
15 January 2012
- Removed Trumpeter Swan Cygnus buccinator from the review list
- Removed Yellow-throated Warbler Setophaga dominica from the review list
27 December 2011
- Corrected spelling of review list hybrid
26 July 2011
- Updated names, list sequence, and taxonomy to conform to the 52nd supplement of the AOU Check-List
11 June 2011
- Added Eastern Whip-poor-will Caprimulgus vociferus to the main and review lists
3 May 2011
- Corrected the apostrophe in the spelling of three bird names
18 January 2011
- Added Fulvous Whistling-Duck Dendrocygna bicolor to the review list
- Added Cape May Warbler Dendroica tigrina to the review list
23 November 2010
- Added Winter Wren Troglodytes hiemalis to the main and review lists
5 September 2010
- Added White-chinned Petrel Procellaria aequinoctialis to the main and review lists
30 July 2010
- Updated names, list sequence, and taxonomy to conform to the 51st supplement of the AOU Check-List
20 May 2010
- Added Hawaiian Petrel Pterodroma sandwichensis to the main and review lists
- Removed "Dark-rumped Petrel" Pterodroma phaeopygia/Pterodroma sandwichensis from the main list
15 Jan 2010
- Appended Galapagos/Hawaiian Petrel Pterodroma phaeopygia/Pterodroma sandwichensis to the review list
- Appended Masked/Nazca Booby Sula dactylatra/Sula granti to the review list
- Appended Blue-winged X Golden-winged Warbler Vermivora pinus X V. chrysoptera to the review list
- Changed the "T" for "tape recording" to "A" for "audio recording" to conform to the CBRC book
9 Jan 2010
- Removed American Golden-Plover Pluvialis dominica from the review list
- Added Elf Owl Micrathene whitneyi to the review list
15 July 2009
- Updated names, list sequence, and taxonomy to conform to the 50th supplement of the AOU Check-List
8 Feb 2009
- Added Bluethroat Luscinia svecica to the main and review lists
17 Jan 2009
- Removed Mottled Petrel Pterodroma inexpectata from the review list
- Added Magnificent Frigatebird Fregata magnificens to the review list
- Removed Sprague's Pipit Anthus spragueii from the review list
16 Jan 2009
- Removed American Oystercatcher Haematopus palliates from the review list
28 July 2008
- Updated names, list sequence, and taxonomy to conform to the 49th supplement of the AOU Check-List
28 Mar 2008
- Added Eurasian Kestrel Falco tinnunculus to the main and review lists
- Added Common Rosefinch Carpodacus erythrinus to the main and review lists
27 Mar 2008
- Added Swallow-tailed Kite Elanoides forficatus to the main and review lists
2 Feb 2008
- Added Tristram's Storm-Petrel Oceanodroma tristrami to the main and review lists
19 Jan 2008
- Removed Manx Shearwater Puffinus puffinus from the review list
- Removed Brown Booby Sula leucogaster from the review list
- Removed Yellow-throated Vireo Vireo flavifrons from the review list
- Removed Scarlet Tanager Piranga olivacea from the review list
6 Jan 2008
- Added Wood Sandpiper Tringa glareola to the main and review lists
8 Nov 2007
- Added Townsend's Shearwater Puffinus auricularis to the main and review lists
- Added Lesser Frigatebird Fregata ariel to the main and review lists
- Removed Little Shearwater Puffinus assimilis from the main and review lists
30 July 2007
- Updated names, list sequence, and taxonomy to conform to the 48th supplement of the AOU Check-List