These birds remain in Margallah Hills National Park throughout the year. They sing and breed in spring. As their number increases the young birds disperse for food within the area and even disperse to new areas. The young birds are preyed upon by predators in the air as well as on ground. The smarter ones among these survive the hazards of nature to sing and breed in spring. Best time to see these beauties is soon after sunrise and little before sunset.
Four types of migratory birds visit Margallah Hills National Park (MHNP): a). Winter visitors from northern latitudes i.e. from northern Asia. b). Winter visitors from higher altitudes i.e. from Himalayan heights. c). Summer visitors from south i.e. the birds that breed and spend summer in MHNP, after that they migrate back. d). Passage migrants. These birds stop for short duration in autumn in MHNP while migrating from north to south or from Himalayan heights to lower heights or plains. These again pass through MHNP while migrating back in spring and stop again for short duration.
a) Winter Visitors From Northern Latitudes
Eurasian Sparrow Hawk (Accipiter nisus)
Northern Hobby (Falco subbuteo)
b) Winter Visitors From Himalayan Heights
Black crested-tit (Luscinia brunnea)
Yellow-rumped Leaf Warbler (Parus rufonuchalis)
Indian Blue Robin or Chat (Phylloscopus ororegulus)