The grey-backed shrike (Lanius tephronotus)

The grey-backed shrike (Lanius tephronotus) is a species of bird in the family Laniidae. It is found in Bangladesh, Pakistan,Among the shrikes, they breed at the highest altitude. They are partial migrants, with some populations moving south in winter. They breed in summer from late May to early July. The nest is built in a bush and about 3 to 5 eggs are laid. 

The eggs are incubated by the female alone and incubation is begun even before the complete clutch is laid. The chicks hatch after 15–18 days and are taken care of by both the parents until the fledge after about two weeks. India (Uttarakhand), Nepal, Bhutan, China and Yunnan.