Green-winged Teal Anas crecca Linnaeus
STANFORD LOCATIONS: Uncommon to fairly common winter visitor at Lagunita, usually seen foraging in shallows at the edge of the lake.

Nest Location	Nest Type	Eggs Mating System	Dev. Parental Care	Primary & 2ndary Diet	Foraging Strategy
			F I: 21-23 DAYS PRECOCIAL 2
	F	8-9 (5-15) MONOG	F: 34 DAYS F	AQUATIC INVERTS	DABBLES

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BREEDING:	Densely vegetated inland freshwater lake, marsh, pond, pool, shallow stream. 1 brood.
DISPLAYS:	See: Duck Displays.
NEST:	Well concealed in clump of tall grass, forbs, brush, or at base of log or shrub. Occ in vicinity of burn, occ far from water. Nest of soft grass, forbs, twigs and leaves. Lined with finer materials and increasing amounts of down.
EGGS:	Cream/light olive buff. 1.8" (46 mm).
DIET:	In summer: aquatic invertebrates, tadpoles; seeds of emergent and aquatic veg. In fall: grain, grass, seeds, plant shoots. Young feed on insects, other invertebrates, veg gleaned from water's edge, aquatic veg.
CONSERVATION:	Winters s to Baja, c Mexico and Bahamas. According to Audubon (1840) individual gunners in w shot 6 dozen/day upon first arrival of migrants.
NOTES:	Young have fastest growth rate of all N.A. ducks. Male usu abandons nest before incubation begins. Female covers eggs when off nest.
ESSAYS:	Bird Communities and Competition; Metallic Poisons; Feathered Nests; Dabblers vs. Divers.
REFERENCES:	Bellrose, 1976; Gooders and Boyer, 1986; Hepp, 1985.

Help	Abbreviations	Species-Alphabetical	Species-Taxonomic	Essays-Alphabetical	Essays-Categorized
Except for Stanford Locations, the material in this species treatment is taken, with permission, from The Birder's Handbook (Paul Ehrlich, David Dobkin, & Darryl Wheye, Simon & Schuster, NY. 1988).