The Canadian province of Prince Edward Island's Department of Agriculture and Forestry most recently published its Field Checklist of Birds in 2014, identifying 369 species of birds observed in the province. Of them, 78 are accidental, 38 are occasional, and 13 are hypothetical as defined below. Two species were introduced to Prince Edward Island and another four were introduced elsewhere in North America. This list is presented in the taxonomic sequence of the Check-list of North and Middle American Birds, 7th edition through the 62nd Supplement, published by the American Ornithological Society (AOS). Common and scientific names are also those of the Check-list, except that Canadian English spellings are used and the common names of families are from the Clements taxonomy because the AOS list does not include them. The following tags are used to categorise some species. The DAF Checklist provides abundance codes by season, and species may be abundant in one season and accidental in another. Therefore, an (A), (O), or (H) code is used here when a "higher" code does not also apply. (A) Accidental - "9 or fewer records per century" per the DAF Checklist (O) Occasional - "seen only 1 - 9 times per decade" per the DAF Checklist (H) Hypothetical - "unconfirmed sighting report or bird of unconfirmed origin" per the DAF Checklist (I) Introduced - "Introduced to Prince Edward Island and now established as a breeding population" per the DAF Checklist (INA) North America - Introduced to North America but not directly to Prince Edward Island Ducks, geese, and waterfowl Order: AnseriformesFamily: Anatidae Anatidae includes the ducks and most duck-like waterfowl, such as geese and swans. These birds are adapted to an aquatic existence with webbed feet, bills which are flattened to a greater or lesser extent, and feathers that are excellent at shedding water due to special oils. Fulvous whistling-duck, Dendrocygna bicolor (A) Snow goose, Anser caerulescens Ross's goose, Anser rossii (O) Greater white-fronted goose, Anser albifrons Pink-footed goose, Anser brachyrhynchus (A) Brant, Branta bernicla Barnacle goose, Branta leucopsis (A) Cackling goose, Branta hutchinsii Canada goose, Branta canadensis Trumpeter swan, Cygnus buccinator (H) Tundra swan, Cygnus columbianus (A) Wood duck, Aix sponsa Garganey, Spatula querquedula (A) Blue-winged teal, Spatula discors Northern shoveler, Spatula clypeata Gadwall, Mareca strepera Eurasian wigeon, Mareca penelope American wigeon, Mareca americana Mallard, Anas platyrhynchos American black duck, Anas rubripes Northern pintail, Anas acuta Green-winged teal, Anas crecca Canvasback,