Appendix 4. Continued. 



species 



Anser albifrons 



Greater white- fronted yoose 



FIBS 



Food 



Grain, tender shoots, occasional Insects 



Seasonal peaks of 

 abundance or activity 



Remarks 



Nov. -Mar. 



Anas strepera 

 Gadl^aTT 



Anas americana 

 American wujeon 



Aythya col lans 

 Ring-necked duck 



Ay thy a aff mis 

 Lesser scaup 



Bucephala albeola 

 bufflehead 



Lophodytes cucul latus 

 Hoocfed inerganser 



Qxyura jamaicensis 

 Ruddy duck 



Porphyrul a martirnca 

 Purple gal 1 inule 



Ga 1 1 inula chloropus 

 Common inoortien 



Ful Kd djnencana 

 Ainerican coot 



Chen caerulescens 

 Snow goose 



Branta canadensis 

 Canada goose 



Anas crecca 



5reen-w1ng ed teal 



Anas njbripes 



American black duck 



Anas ful vigula 

 Mottled duck 



Anas platyrtiynchos 

 Mallard 



Anas acuta 



Northern pintal 1 



Ana_s discors 



B1ue-Hlnged teal 



Anas c lypeatd 



Northern shovel er 



FIBS 

 FIBS 

 FIBS 

 FIBS 

 FIBS 



FI 

 FIBS 



FIB 



FIBS 

 FIBS 

 FIBS 



FIBS 

 FIBS 

 FIBS 



FIBS 



FIBS 



FIBS 



Principally plants Oct. -Mar. 



90% plant. 101 animal (from Sept. -Apr.) Oct. -Apr. 



19% animal: Insects, mollusks; 81% plant: aquatic Oct. -Apr. 



plants, sedges, grasses, smartweeds 



Similar to A. marl 1 a Oct. -Apr. 



79% animal: insects, crustaceans, mollusks, fish; Nov. -Mar. 

 21% plant: pondweeds , misc. 



Mostly insects; also small fish, frogs, mollusks, Nov. -Apr. 

 crayfish, roots of aquatic plants, seeds, grain 



72% plant: aquatic plants, grasses, sedges; Nov, -Apr. 

 28% animal: Insects, mollusks, crustaceans 



Rice, other seeds, worms, mollusks Apr. -Sept. 



Seeds, roots, soft parts of aquatic plants, snails Apr. -Nov. 



insects, worms 



Leaves, fronds, seeds and roots of aquatic plants; Sept. -Apr. 



wild celery, algae; worms, snails. Insects, small 

 fish, tadpoles 



Almost wholly plants: grain, roots and culms of Oct. -Apr. 



grasses; some insects, mol lusks 



Almost wholly plants: aquatic plants, marsh grasses Oct. -Feb. 

 sedges; some mollusks, crustaceans 



10% animal: Insects, mollusks, crustaceans Oct, -Mar. 



90% plant: sedges, pondweeds and grasses (62%); 

 other (28%) 



Mast, grain, mollusks, crustaceans Oct. -Mar. 



40% animal: mollusks. Insects, crayfish, small 

 fish; 60% plant: inostly grasses (plants and seeds) 



90% plant: sedges, grasses, smartweeds, pondweeds, 

 duckweeds, tubers, mast; 10% animal: Insects, 

 crustaceans, mollusks, fish 



13% animal: mollusks, crustaceans. Insects 

 87% plant: pondweed , sedges and grasses (60%); 

 other (27%) 



30% animal: worms, mollusks, insects, tadpoles 

 70% plant: sedges, pondweeds and grasses (43,6%); 

 other (26.4%) 



Animal: worms, small mollusks, insects, shrimp, Oct. -Apr. 



small fish, small frogs. Plant: buds and young 

 shoots of rushes and other aquatics; grasses 



Oct. -Mar. 



Feb. -Apr.; Sept. -Nov. 



WADING 81RDS 



Botdurus lentiglnosus 

 'Vnerican bittern 



Ixubrychus exil is 

 Least bittern 



Ardea herodias 

 Great blue heron 



Casjnerodius albus 

 Great egret 



FIB 



FIBS 

 FIBS 



FIBS 



Mollusks, crayfish. Insects, small fish, frogs, 

 lizards, small snakes, mice 



Oct. -May 



Slugs, leeches, insects, small fish, tadpoles, small Apr. -Sept. 



frogs, lizards, small mammals 



Mostly fish; also crustaceans. Insects, frogs, 

 llzarxjs, snakes, birds, small manmals 



Small fish, snails, fiddlers. Insects, frogs, 

 lizards, small snakes, mice, some plant material 



(Continued) 



Year- Round 



"Blue List" 

 Natl. Aud. Soc. 

 (1976) 



130 



