Lanius macrourus Linnaeus, 1766
The blue-naped mousebird (Urocolius macrourus), also formerly called the blue-naped coly (Colius macrourus) is found in the wild in the drier regions of East Africa and is also a common pet bird. It is one of the remaining six species of Mousebirds. The term “mousebird” comes from its ability to move along the ground in a way that resembles the scurrying of a mouse.
The blue-naped mousebird is a fairly small to medium-sized bird, measuring 13-14 inches in length. Adults have an ash brown, grayish body, crested head with a turquoise nape, and a black-and-red bill, whereas juveniles lack the blue on nape, and have pink facial skin and greenish bills.
Characteristic of mousebirds, the blue-naped mousebird has widely spaced and large feet for its body size, which are pamprodactylous; they are able to rotate all four toes to face forward at will. Their toes are strong and dextrous, allowing the birds to climb and scurry along branches, to hang by a toenail, or to use one foot to hold food.
Distribution and habitat
In the wild, these birds live in the semi-desert and dry regions of eastern Africa They are found in a band between 10°N and 20°N from the western coast to Sudan, Djibouti, Eritrea, Ethiopia and Somalia in the East and south 10°N through East Africa and on to the Eastern Zaire borders. This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as least concern.
- BirdLife International (2012). "Urocolius macrourus". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.
- "Mystery bird: Blue-naped mousebird, Urocolius macrourus". The Guardian. London. 2011-11-07. Retrieved 2013-02-04.
- "Blue-naped mousebird". Retrieved 2013-02-04.
- "Kenya Birds: Blue-naped mousebird". Archived from the original on 2012-02-06. Retrieved 2013-02-04.
- "The IUCN Redlist of Threatened Species: Blue-naped mousebird". Archived from the original on 2013-09-24. Retrieved 2013-02-04.
- Dale A. Zimmerman, Birds of Kenya and Northern Tanzania, Princeton University Press, 1999
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