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Blue-backed Parrot

 (Tanygnathus everetti)

Also known as: Mueller's Parrot

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Blue-backed Parrot
© Chris [CC BY 2.0] via Wikimedia Commons

Academic Research

Related publications: Tanygnathus everetti

Species Profile

Genus: Tanygnathus | Species: everetti

Size:

32 cm (12.5 in)

Weight:

230-330 g (8-11.5 oz)

Races including nominate:

Four: T.s. everetti, T.s. burbidgii, T.s. duponti, T.s. freeri

Colour Adult:

T.s. everetti: Both adults-as in burbidgii but head darker green; mantle edged dark blue; rump and lower back darker blue. Eye red. 
T.s. burbidgii: Both adults-deep blue rump and lower back.     
T.s. duponti: Both adults-as in everetti but more yellow neck in a noticeable collar.   
T.s. freeri: Both adults-as in everetti but more yellow in general; paler blue on mantle.

Colour Juvenile:

As in adult.

Call:

Likely similar to Azure-rumped Parrot: calls described as loud and barking; also disyllabic call followed by upslurred, nasal screeching note; musical quavering shriek and single, nasal-sounding squawk. While perched gives single loud notes.

More Information:

Avibase
Wikipedia

Content Sources:

Click photo to visit gallery

Blue-backed Parrot
© Chris [CC BY 2.0] via Wikimedia Commons

Academic Research

Related publications: Tanygnathus everetti

Species Care

Captive Status:

Not found.

Longevity:

Not recorded.

Housing:

Not recorded.

Diet:

Not recorded.

Enrichment:

Not recorded.

Nest Box Size:

Not recorded.

Clutch Size:

Not recorded.

Incubation Time:

Not recorded.

Fledging Age:

Not recorded.

Hatch Weight:

Not recorded.

Peak Weight:

Not recorded.

Weaning Weight:

Not recorded.

Click photo to visit gallery

Blue-backed Parrot
© Chris [CC BY 2.0] via Wikimedia Commons

Academic Research

Related publications: Tanygnathus everetti

Species Wild Status

World Population:

375-1500

IUCN Red List Status:

Endangered

CITES Listing:

Appendix II

Threat Summary:

Has a restricted range. Possibly now extinct on Negros and Siquijor, and very rare on Mindoro, Luzon and other islands due to a combination of habitat loss and heavy illegal trapping. The reported scarcity of birds in markets suggests the genuine rarity of the species. Mining activities are reducing habitats across Tawi-Tawi.

Range:

T.s. everetti: Central to southern Philippine Islands.
T.s. burbidgii: Sulu Archipelago, southern Philippine Islands.
T.s. duponti: Luzon, northern Philippine Islands.
T.s. freeri: Polillo, northern Philippine Islands.

Habitat:

Thought to be similar to Azure-rumped Parrot: tropical, lowland, and montane forests, as well as mangrove swamps and degraded forests

Wild Diet:

Thought to be similar to Azure-rumped Parrot: may include fruits of Leptospermum and Ficus, nuts, seeds and berries and occasionally cultivated crops.

Ecology and Behaviour:

Very little known of ecology but thought to be similar to Azure-rumped Parrot: Resident, quiet and inconspicuous. Mostly encountered singly, in pairs or less often in small flocks.

Clutch and Egg Size:

Likely 2-3 eggs.

Breeding Season:

Possibly April. Nest is likely in tree hollow.

Related Links:

Research: Taxonomy of Tanygnathus Sumatranus

Click photo to visit gallery

Blue-backed Parrot
© Chris [CC BY 2.0] via Wikimedia Commons

Academic Research

Related publications: Tanygnathus everetti

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