Rock Sparrow. Note yellow throat patch |
All over the world, the English name for a small, brown,
streaky bird tends to include the word “Sparrow” even if the bird concerned is
not at all closely related to the pretty much universally distributed House
Sparrow. Having said that, the subject of the present post, the Rock Sparrow Petronia petronia, does belong to the
same family as House and Tree Sparrows, albeit a separate genus.
The various species of Petronia (there are five) are all
found in the Old World, ranging from Africa across to Asia. Only the Rock
Sparrow is found in southern Europe. Most species live in dry grassland and
bushy savannah, but Rock Sparrows are birds of barren hillsides and rocky
places as their name suggests, and tend to avoid the lusher areas of grassland
preferred by their relatives. They have heavy bills and can use larger seeds
than the grasses used by House Sparrows. Like them they also take insects and
especially require them when raising young.
Rock Sparrow fledglings |
Rock Sparrow nest in crevices in the rocks and produce a
clutch of between 3 and 7 eggs. Incubation is 12-15 days and the young fledge
at around 21 days. There are usually two broods each year except at altitude
where the breeding season is shorter. Although not colonial like House
Sparrows, outside the breeding season they are gregarious and form nomadic
flocks.
Given the large range and habitat Rock Sparrows do not face
any particular threats and are consequently listed as Least Concern by the
IUCN.
(image from Wikipedia)
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