Constructed Borrow-Pit Wetlands as Habitat for Aquatic Birds in the Peace Parkland, Canada

Table 2

Summary of aquatic birds observed on 200 borrow-pit ponds in northwestern Alberta in May–August 2007. Status codes are C = common (observed on all surveys), O = occasional (observed on more than one survey), R = rare (observed once), B = breeding (chicks observed). The number of occupied ponds (out of 200) is presented for May, June, July, and August.

Common name	Code	Latin name	Status	Species occurrences
				May	June	July	August
Canada goose	CAGO	Branta canadensis	C, B	4	2	7	2
Gadwall	GADW	Anas strepera	O	0	2	1	1
American wigeon	AMWI	Anas americana	C, B	30	18	6	4
Mallard	MALL	Anas platyrhynchos	C, B	46	12	9	24
Blue-winged teal	BWTE	Anas discors	O	12	12	3	0
Northern shoveler	NSHO	Anas clypeata	C, B	25	10	3	5
Northern pintail	NOPI	Anas acuta	O	1	0	0	3
Green-winged teal	GWTE	Anas carolinensis	O, B	23	9	0	4
Canvasback	CANV	Aythya valisineria	C, B	15	7	13	17
Redhead	REDH	Aythya americana	C	4	3	1	1
Ring-necked duck	RNDU	Aythya collaris	C, B	39	23	17	31
Lesser scaup	LESC	Aythya affinis	C, B	33	39	18	43
Surf scoter	SUSC	Melanitta perspicillata	R	2	0	0	0
Bufflehead	BUFF	Bucephala albeola	C, B	86	61	78	68
Common goldeneye	COGO	Bucephala clangula	C, B	18	6	10	22
Barrow’s goldeneye	BAGO	Bucephala islandica	O	4	2	0	0
Hooded merganser	HOME	Lophodytes cucullatus	R	0	0	0	2
Ruddy duck	RUDU	Oxyura jamaicensis	C, B	5	4	1	5
Horned grebe	HOGR	Podiceps auritus	C, B	100	84	84	61
American coot	AMCO	Fulica americana	C, B	13	10	22	21
Sora	SORA	Porzana carolina	O	0	3	1	0
Lesser yellowlegs	LEYE	Tringa flavipes	O	1	0	0	1
Solitary sandpiper	SOSA	Tringa solitaria	O	1	2	0	2
Spotted sandpiper	SPSA	Actitis macularia	O	0	0	0	8
Common snipe	COSN	Gallinago gallinago	O	5	1	0	2
Black tern	BLTE	Chlidonias niger	R	0	0	0	1
Common tern	COTE	Sterna hirundo	R	2	0	0	0