Tree sparrows are the lesser seen cousin of the house sparrow. They are not particularly common but are a sight to behold when visiting your garden. The clutch size ranges from 2-7 eggs. These take 11-14 days to hatch and then 15-20 days for before the fledglings leave.
The main way to separate tree sparrows from their more commonly seen cousin is by checking their cheeks. Male and female tree sparrows look much the same and both have a tell-tale black cheek patch that cannot be found on a house sparrow. They also have a chestnut brown head as opposed to the grey crown of a house sparrow and the presence of a white streak on either side of the tree sparrow's face. This is another trait that the house sparrow does not share.
Once a pair of Tree Sparrows have bonded, these two will remain in each others company for the majority of time. They will feed, bath and also preen together.
Juvenile tree sparrows look much the same as the adults, only slightly duller and with dark cheeks devoid of the streaks of white.
Tree sparrows feed insects to their young in the breeding season but are more accustomed to eating seeds for the rest of the year. They eat seeds from grasses, weeds and cereals such as Barley and Wheat. They will readily come to bird feeders for seed mixes containing a variety of small seeds, especially Red Millet Seed.