| Kingdoms / Animalia / Craniata / Aves / Anseriformes / Anatidae / Anas / Species |
| < > Anas crecca - Common teal (Click photographs/illustrations: full picture & further details) |
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Alternative Names (Synonyms) |
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| Teal Greenwing Eurasian teal (Anas crecca crecca) Eurasian green-winged teal (Anas crecca crecca) Aleutian green-winged teal (Anas crecca nimia) Green-winged teal (Anas crecca carolinensis) American green-winged teal (Anas crecca carolinensis) Querquedula crecca Querquedula carolinensis - Green-winged teal |
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Names for newly-hatched |
Duckling, downy. |
Names for non-breeding males or other colour-phases |
Eclipse |
Species Author |
Debra Bourne |
Major References |
B1, B2, B3, B5, B8, B19, B25, B26, B27.
Other references: Aviculture references: |
ORGANISATIONS |
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TAXA Group (where information has been collated for an entire group on a modular basis) |
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Parent Group |
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Specific Needs Group referenced in Management Techniques |
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Aviculture Information |
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Notes |
General Information:
(B7, B29, B30, B40, B94, B128.w1, D1) Species-specific information:
(B29, B30, B31, B40, B94, B95, B96, B97, B108, B128, B129) Aviornis UK Ringing Scheme recommended average ring size: G 7.0mm (D8). |
| Individual Techniques linked in Wildpro |
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External Appearance (Morphology)
Measurement & Weight |
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| Length | 13-16 inches, 38-43cm (B3); 34-43cm (B1). | |
| Adult weight | General | Average 340-360g (B1). |
| Male | Average 360g (B3) | |
| Female | Average 340g (B3) | |
| Newly-hatched weight | -- | |
| Growth rate | -- | |
| Adult | Bill | Male | Black. |
| Variations (If present) | Female: Grey. | ||
| Eyes (Iris) | Male | Brown. | |
| Variations(If present) | -- | ||
| Juvenile | Bill | Grey. | |
| Eyes (Iris) | Brown. | ||
| Adult | Male | Grey. |
| Variations (If present) | -- | |
| Juvenile | Grey. | |
| Adult | Male![]() |
Head and neck bright
chestnut, with metallic green patch around eye and extending caudally along neck, edged
with creamy yellow line extending to bill, also black chin, short black crest. Breast pale
pinkish brown with black spots, abdomen white. Upperparts and flanks vermiculated
grey-brown and white. Black and white outer scapulars
form distinct horizontal line above flank. Tail grey, undertail coverts
creamy-yellow/buff, surrounded by black. Wing has primaries dark grey-brown, coverts grey, with greater coverts buff-tipped and secondaries iridescent green with white tips. Speculum iridescent green with buff front border and white rear border. |
Variations (If present)![]() |
Anas crecca
carolinensis: pale line around green patch on head is indistinct, scapulars
basically black so no white horizontal line, but vertical white line conspicuous on sides
of breast. Female: head and neck pale buff-brown with darker crown and hindneck, eyeline and streaking. Breast, abdomen and ventral region buff-brown with darker spotting, plain buff on sides of tail, and central abdomen whitish. with darker streaks. Upperparts dark brown with paler feather edges and bases. Wing similar to male but browner. Eclipse: Similar to female, but upperparts darker and eye-stripe less distinct. |
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| Juvenile | Similar to female but abdomen spotted. | |
Newly-hatched Characteristics |
| General: Upperparts
dark brown with yellow markings, underparts yellow, dark eyeline and second line
below this. Bill: Dark grey Feet: Dark grey. |
Reproductive Season |
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| Time of year | Begins March-May. |
| No. of Clutches | One; re-nest if clutch lost. |
Nest placement and structure |
| On the ground in dense vegetation, a deep hollow lined with dry leaves and down. |
Egg clutches |
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| No. of Eggs | Average | 8-11 (B1). |
| Range | 5-16 (B1); 8-11 (B8). | |
| Egg Description | Cream, yellow-white or pale olive-buff. | |
| 21-23 days (B1, B8). |
| Synchronous. |
| 25-30 days (B1); perhaps 25-44 days, mean 40 days (B8). |
Sexual Maturity |
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| Males | About one year old. |
| Females | About one year old. |
Feeding Behaviour |
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| Adults | Dabble, head-dip, up-end and dive in shallows, also mud-filter. |
| Newly-hatched | -- |
Parental Behaviour |
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| Nest-building | Solitary nests or in loose groups. Nest built by female only. |
| Incubation | By female only. |
| Newly-hatched | Tended by female only. |
| Juveniles | Independent from about one month old. |
Social Behaviour |
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| Intra-specific | Gregarious outside breeding season, usually forming groups of perhaps 30-40 birds. |
| Inter-specific | -- |
Sexual Behaviour |
| Seasonal pair bond, but males promiscuous. |
Predation in Wild |
| -- |
| -- | |
| Circadian | Mainly nocturnal feeding. |
| Spring and summer aquatic invertebrates are important (insects, crustaceans, worms, molluscs); in winter more seeds of aquatic plants, grasses and sedges, plus grain. |
| -- |
Distribution and Movement (Migration etc.) |
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| Normal | Anas crecca crecca
Across northern and central Palearctic. Anas crecca nimia Aleutian Islands. Anas crecca carolinensis most of Nearctic. London: In the London Area, "common winter visitor and rare breeder." Several hundred in winter at sites such as Beddington sewage farm and the Thames Barrier; more than 100 on the Thames in the Barnes/Putney area in February 2000. In Inner London, one seen at Regents Park in September 2000. (J322.65.w1) Northern populations migrate south to lower latitudes, reaching the equator (Kenya); temperate populations are sedentary. |
| Occasional and Accidental | Anas
crecca crecca to Jan Mayen Island, Bear Island, Spitsbergen, Cape Verde Islands. |
| Introduced | -- |
| Small fresh-water lakes, shallow marshes with thick cover. Winter also brackish wetlands and coastal areas. |
Intraspecific variation |
| Eurasian teal (Anas crecca crecca) Aleutian green-winged teal (Anas crecca nimia) Green-winged teal (Anas crecca carolinensis) |
Conservation Status |
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| Wild Population - (Importance) |
Abundant (B1). |
| General Legislation |
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| CITES listing | Listing not yet included. |
| Red-data book listing | Listing not yet included. |
| Threats | -- |
Captive Populations |
| Common in collections (B8). |
| -- |