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Bird name:

Blue-winged Teal

Anas discors

Order

ANSERIFORMES

Family

Geese and Ducks (Anatidae)

BTO 2

TB

BTO 5

BLWTE

Euring 5

01920
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Breeding Location:

Lakes, Marshes, Wetlands



Breeding Type:

Monogamous, Solitary nester



Egg Colour:

White to olive.



Number of Eggs:

6 - 15



Incubation Days:

18



Egg Incubator:

Female



Nest Material:

Lined with down, grass and weeds.



Nest Location:

On ground, near water.



Migration:

Migratory



General

Blue-winged Teal: Small dabbling duck; purple-grey head and distinct white crescent on face. Upperparts are scaled buff and dark brown; underparts are pale brown with dark spots. Wings have green speculum and pale blue shoulder patch. Female has no purple on head, shows white at base of bill, and has scaled instead of spotted underparts. Juvenile resembles female; has plainer upperparts and more heavily spotted underparts; young male has brighter metallic green on speculum and a more distinct white stripe than young female; lacks white at base of bill.

Range and Habitat

Blue-winged Teal: Breeds in northern prairies and parklands of central North America and spends winters from Central America and the Caribbean south to Peru and northeastern Brazil. Preferred nesting habitats include wetland areas within grasslands, such as marshes, ponds, and lakes. Winter habitats are mostly swamps and shallow wetlands. Rare vagrant to the UK and Ireland.

Breeding and Nesting

Blue-winged Teal: Pair formation begins in the winter and continues through spring during their migration. Six to fifteen white to olive eggs are laid in a ground hollow filled with grass and weeds and lined with down. The nest is built by the female and is usually hidden in tall grass near water. The female incubates the eggs for 22 to 27 days. The young fly in 35 to 49 days.

Foraging and Feeding

Blue-winged Teal: These birds limit foraging to aquatic areas in the shallow water and mudflats. The majority of their diet is plant matter, particularly seeds. Only during the period just before and during egg-laying do adult females consume large amounts of aquatic invertebrates, mainly insect larva, and snails, to meet the heightened protein requirements for egg production., Blue-winged Teal: These birds limit foraging to aquatic areas in the shallow water and mudflats. The majority of their diet is plant matter, particularly seeds. Only during the period just before and during egg-laying do adult females consume large amounts of aquatic invertebrates, mainly insect larva, and snails, to meet the heightened protein requirements for egg production.

Vocalisation

Blue-winged Teal: Utters a high whistled "tsee tsee."

Similar Species

Blue-winged Teal: Male resembles female Scaup but has a dark, not yellow iris. Male Garganey has white stripe running from the eye to the nape. All other brown mottled ducks in range lack the female's white eye ring.

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UnderpartsX

Belly, undertail coverts, chest, flanks, and foreneck.

UpperpartsX
Back, rump, hindneck, wings, and crown.
FaceX
The front part of the head consisting of the bill, eyes, cheeks and chin.
ShoulderX
The short feathers overlying the median secondary coverts on the top of the wing. They are located near the back and can be seen as the “first row” of feathers on the birds wing. They are also called marginal coverts and lesser secondary coverts.
SpeculumX
The brightly colored area on the wing (secondaries of the wing) on several duck species.
4 and 6 letter alpha codesX

The four letter common name alpha code is is derived from the first two letters of the common first name and the first two letters of common last name. The six letter species name alpha code is derived from the first three letters of the scientific name (genus) and the first three letters of the scientific name (species). See (1) below for the rules used to create the codes..

Four-letter (for English common names) and six-letter (for scientific names) species alpha codes were developed by Pyle and DeSante (2003, North American Bird-Bander 28:64-79) to reflect A.O.U. taxonomy and nomenclature (A.O.U. 1998) as modified by Supplements 42 (Auk 117:847-858, 2000) and 43 (Auk 119:897-906, 2002). The list has been updated by Pyle and DeSante to reflect changes reported by the A.O.U from 2003 through 2006.

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ITIS CodesX

The Integrated Taxonomic Information System (ITIS) was established in the mid-1990 s as a cooperative project among several federal agencies to improve and expand upon taxonomic data (known as the NODC Taxonomic Code) maintained by the National Oceanographic Data Center (NODC), National Oceanic and Atmospheric Administration (NOAA).

To find the ITIS page for a bird species go to the ITIS web site advanced search and report page at http://www.itis.gov/advanced_search.html. You can enter the TSN or the common name of the bird. It will return the ITIS page for that bird. Another way to obtain the ITIS page is to use the Google search engine. Enter the string ITIS followed by the taxonomic ID, for example "ITIS 178041" will return the page for the Allen's Hummingbird.

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Parts of a Standing birdX
Head Feathers and MarkingsX
Parts of a Flying birdX