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| Kingdoms / Animalia / Craniata / Aves / Anseriformes / Anatidae / Pteronetta / Species |
| < > Pteronetta hartlaubii - Hartlaub's duck (Click photographs/illustrations: full picture & further details) |
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Alternative Names (Synonyms) |
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| Hartlaub duck Hartlaub’s goose Hartlaub’s teal Hartlaubsente (German) Hartlaubente (German) Canard de Hartlaub (French) Ptéronette de Hartlaub (French) Pato de Hartlaub (Spanish) Pteronetta hartlaubi Cairina hartlaubi (Pteronetta hartlaubi albifrons - Eastern Hartlaub's duck) |
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Names for newly-hatched |
Duckling, downy. |
Names for non-breeding males or other colour-phases |
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Species Author |
Debra Bourne |
Major References |
B1, B3, B6, B8, B25, B26. |
Other References |
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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:
Species-specific information:
(B11.33.w1, B29, B30, B94, D1). Aviornis UK Ringing Scheme recommended average ring size: L 11.0mm (D8). |
Management Techniques |
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External Appearance (Morphology)
Measurement & Weight |
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| Length | 22-23 inches, 56-58cm (B1, B3). | |
| Adult weight | General | 800-940g (B1, B3) |
| Male | Mean 2.1 lbs. (B8); mean 976g (B25). | |
| Female | Mean 1.7 lbs. (B8); mean 788g (B25). | |
| Newly-hatched weight | -- | |
| Growth rate | -- | |
| Adult | Bill | Male | Black with grey to yellow or pinkish near tip but black nail. Base sometimes swollen in breeding season. (B3, B6, B8, B25, B26) |
| Variations (If present) | Female:- no swelling of bill base (B3, B25) | ||
| Eyes (Iris) | Male | Reddish-brown (B6, B25) | |
| Variations(If present) | Female:- brown (B6); reddish-brown (B25) | ||
| Juvenile | Bill | Black with grey to yellow or pinkish near tip but black nail. (B25) | |
| Eyes (Iris) | Reddish-brown (B25) | ||
| Adult | Male | Dark yellow-tinged brown (B6, B25) |
| Variations (If present) | -- | |
| Juvenile | Dark yellow-tinged brown (B6, B25) | |
| Adult | Male | Head and upper neck black with variable white on forehead, sometimes spreading over crown. Neck, breast, upperparts and underparts rich chestnut brown. Tail, rump and upper wing olive-brown, upperwing coverts blue, visible on side when wing folded. (B3, B6, B8, B25, B26). |
| Variations (If present) | Female:- Slightly duller. Less or no white on head. (B3, B6, B8, B25, B26) | |
| Juvenile | Similar to adults but duller. Underparts have pale feather edges. (B3, B6, B25, B26) | |
Newly-hatched Characteristics |
| General: Upperparts
brown with black cap and yellow markings on wings, sides of back and rump,
underparts yellow, including face and throat with black stripe through eye. Bill: Black Feet: Black (B6, B7,B8, B26) |
Reproductive Season |
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| Time of year | No wild nests found: presume in rainy season as ducklings seen August to November (B1, B8, B25). |
| No. of Clutches | -- |
Nest placement and structure |
| Probably in tree hollows (from behaviour in captivity), with down (B1, B3, B7, B8, B25, B26) |
Egg clutches |
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| No. of Eggs | Average | 9 (B8) |
| Range | 8-12 (B1, 26); 7-12 (B8) | |
| Egg Description | Creamy (B8); Size 58 x 42mm (B3); weight 51g (B3). | |
| 30-32 days (B1, B8) |
| Synchronous. |
| 56-60 days, perhaps up to 100 days (B8); about 8 weeks (B1) |
Sexual Maturity |
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| Males | 1 year old (B1) |
| Females | 1 year old (B1) |
Feeding Behaviour |
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| Adults | Forage along streams and pools B6, B8) |
| Newly-hatched | -- |
Parental Behaviour |
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| Nest-building | -- |
| Incubation | By female (B3, B26). |
| Newly-hatched | Tended and defended by both parents (B3, B7, B8) |
| Juveniles | |
Social Behaviour |
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| Intra-specific | Usually found as pairs, sometimes in small flocks during moult (B3, B8, B25). |
| Inter-specific | -- |
Sexual Behaviour |
| Strong, probably life-long pair bonds (B8) |
Predation in Wild |
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| Perch on logs and branches of large trees (B3, B6, B8, B25, B26). | |
| Circadian | Feed mainly in the evening. (B3, B8, B25, B26) |
| Mainly aquatic invertebrates: aquatic insect larvae (Hexapoda), molluscs (Mollusca), crustaceans (Crustacea), arachnids (Arachnida). Also small seeds, and roots (B1, B8, B26). |
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Distribution and Movement (Migration etc.) |
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| Normal | West central (equatorial) Africa. Sierra Leone, southern Guinea, Liberia eastward to southern Cameroon, Central African Republic, southern Sudan, north and north-east Zaire. Southward to north-eastern Angola and southern Zaire. Non-migratory. (B1, B19, B19-Suppl., B25, B26). |
| Occasional and Accidental | -- |
| Introduced | -- |
| Rain forest and wooded savannahs. Forested streams, marshes and pools with heavy edge vegetation (B1, B3, B6, B8, B25, B26). |
Intraspecific variation |
| Birds with more white on heads have sometimes been regarded as a separate sub-species: Pteronetta hartlaubi albifrons - Eastern Hartlaub's duck. B1, B8, B25 |
Conservation Status |
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| Wild Population - (Importance) |
Not globally threatened (B1), but may be considered near-threatened (B8). |
| CITES listing | CITES III in Ghana (B1). |
| Red-data book listing | -- |
| Threats | Loss of forest habitat (B8). |
Captive Populations |
| Uncommon in collections (B8). |
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