2018-A-1: Transfer Japanese Bush-Warbler from Cettia to Horornis
2018-A-2: Elevate Automolus ochrolaemus exsertus to species rank
2018-A-3: Transfer Geothlypis aequinoctialis chiriquensis from Masked Yellowthroat G. aequinoctialis to Olive-crowned Yellowthroat G. semiflava
2018-A-4: Lump Cherrie's Tanager Ramphocelus costaricensis with Passerini's Tanager R. passerinii
2018-A-5: Change the English name of Rock Pigeon Columba livia back to Rock Dove
2018-A-6: Treat extralimital Elaenia brachyptera as a separate species from Lesser Elaenia E. chiriquensis
2018-A-7: Treat extralimital Henicorhina anachoreta as a separate species from Gray-breasted Wood-Wren H. leucophrys
2018-A-8: Split extralimital Mitrephanes olivaceus from Tufted Flycatcher M. phaeocercus, and extralimital Fluvicola albiventer from Pied Water-Tyrant F. pica
2018-A-9: Split Luscinia to recognize Larvivora, Calliope, and Cyanecula
2018-A-10: Transfer Lesser Whitethroat from Sylvia to Curruca

2018-B-1: Split Pacific Swift Apus pacificus into four species
2018-B-2: Restore Canada Jay as the English name of Perisoreus canadensis
2018-B-3: Recognize two genera in Stercorariidae
2018-B-4: Split Red-eyed Vireo (Vireo olivaceus) into two species
2018-B-5: Split Pseudobulweria from Pterodroma
2018-B-6: Add Tadorna tadorna (Common Shelduck) to the Checklist
2018-B-7: Add three species to the U.S. list
2018-B-8: Change the English names of the two species of Gallinula that occur in our area
2018-B-9: Change the English name of Leistes militaris to Red-breasted Meadowlark
2018-B-10: Revise generic assignments of woodpeckers of the genus Picoides
2018-B-11: Split the storm-petrels (Hydrobatidae) into two families

2018-C-1: Adopt (a) a revised linear sequence and (b) a subfamily classification for the Accipitridae
2018-C-2: Split Yellow Warbler (Setophaga petechia) into two species
2018-C-3: Revise the classification and linear sequence of the Tyrannoidea

2018-C-3-1: Revise the family relationship of Onychorhynchus, Terenotriccus, and Myiobius
2018-C-3-2: Change the composition and sequence of the group which includes Myiornis through Tolmomyias
2018-C-3-3: Place Platyrinchinae at the beginning of Tyrannidae
2018-C-3-4: Restrict Platyrinchinae to Platyrinchus
2018-C-3-5: Raise Platyrinchinae and Rhynchocyclinae to family
2018-C-3-6: Merge Nesotriccus into Phaeomyias as Phaeomyias ridgwayi
2018-C-3-7: Change the composition and sequence of Elaeniinae
2018-C-3-8: Change the composition and sequence of Fluvicolinae
2018-C-3-9: Change the placement of Tyranninae
2018-C-3-10: Change the treatment of Piprites by creating a new family Pipritidae

2018-C-4: Split Cory's Shearwater (Calonectris diomedea) into two species
2018-C-5: Split Puffinus boydi from Audubon's Shearwater P. lherminieri
2018-C-6: (a) Split extralimital Gracula indica from Hill Myna G. religiosa; (b) Move Gracula religiosa from the main list to Appendix
2018-C-7: Split Melozone occipitalis from White-eared Ground-Sparrow M. leucotis
2018-C-8: Split White-collared Seedeater (Sporophila torqueola) into two species
2018-C-8b: Adopt the English name Morelet's Seedeater for Sporophila morelleti
2018-C-9: Lump Taiga Bean-Goose Anser fabalis and Tundra Bean-Goose A. serrirostris
2018-C-10: Recognize Mexican Duck Anas diazi as a species
2018-C-11: Transfer Loxigilla portoricensis and L. violacea to Melopyrrha
2018-C-12: Split Gray Nightjar Caprimulgus indicus into three species, recognizing (a) C. jotaka and (b) C. phalaena
2018-C-13: Split Barn Owl (Tyto alba) into three species
2018-C-14: Split LeConte's Thrasher (Toxostoma lecontei) into two species
2018-C-15: Revise generic assignments of New World "grassland" sparrows