07 travnja 2011

Gambia 100 dalasis, 2006 (Many thanks to Wilson Chow from Malaysia!)

The Senegal Parrot (Poicephalus senegalus) is a Poicephalus parrot which is a resident breeder across a wide range of west Africa. It makes migrations within west Africa, according to the availability of the fruit, seeds and blossoms which make up its diet. It is considered a farm pest in Africa, often feeding on maize or millet. It is popular in aviculture.

There are three subspecies. They do not differ in behaviour, but only in the colour of the "vest". In the pet trade, the nominate subspecies is the most common though all three are raised and sold as pets.

* Poicephalus senegalus senegalus (the nominate subspecies): this subspecies has a yellow vest; its native range includes southern Mauritania, southern Mali to Guinea and Lobos Island.
* Poicephalus senegalus mesotypus: this subspecies has an orange vest; its range is from eastern and northeastern Nigeria and Cameroon into southwest Chad.
* Poicephalus senegalus versteri: this subspecies has a deep-orange/red vest; its range is from the Ivory Coast and Ghana east to western Nigeria.

Senegal Parrots are birds of open woodland and savanna. With the exception of the Ring-Necked Parakeet, the Senegal is the only parrot inhabitant of the savanna woodlands and forest mossaic of West Africa. It is a gregarious species, continuously chattering with a range of whistling and squawking calls. Senegal Parrots live an average of approximately 25–30 years in the wild, and have been known to live for 50 years in captivity.

Senegal Parrots are about 23 cm long, weigh about 120 to 170 g. They have a relatively large head and beak for their overall size, and feathers form a short broad tail. Adults have a charcoal grey head, grey beak, bright yellow irises, green back and throat, and yellow underparts and rump. The yellow and green areas on a Senegal Parrot's front form a V-shape resembling a yellow vest worn over green. Young Juveniles have dark grey, almost black, irises, which change to light grey.

Senegal Parrots are not sexually dimorphic, but there are some hypotheses which sometimes might help to determine the gender of adult birds:

* The V-shape of the vest is usually longer in females; in females the green area extends down over the chest to between the legs, whereas in males the tip of the green area ends midway down the chest.
* The female's beak and head are generally slightly smaller and narrower than the male's.
* The under-tail covert feathers (short feathers under the base of the main tail feathers) are generally mostly yellow in the male and generally mostly green in the female.
* Males are generally, but not always, larger and heavier than female birds.

2 komentara:

  1. Rango-

    These are some amazing looking Gambian notes! Congrats on the new add!


  2. Thank you Jay! I am very grateful to my friend Wilson, who sent me these great banknotes!