Abstract
Abstract The house sparrow Passer domesticus (L.) was the most commonly found resident bird of the country, inhabiting almost all types of ecosystems throughout the year. House sparrows harbor different types of chewing lice, with a wide range of population dynamics. In the present study, the house sparrow Passer domesticus (L.), was examined for chewing lice (Insecta: Phthiraptera) population with seasonal effects on infestation in Sindh Province, Pakistan, during 2016–2017. A total of 177 birds were examined in the upper, central, and lower Sindh regions. Five species of chewing lice were reported, and their population intensity on the host body were recorded. The data were taken by a random sampling method. Brueelia cyclothorax (77.52%) was the most prevalent louse species and P. fringillae (0.77%) was the least prevalent. The frequency of lice species was also recorded significant for B. cyclothorax (59.75%) and the least frequent species was P. fringillae (0.178%). The Fisher's Exact Test showed a non-significant difference between frequencies of lice and their prevalence of infestation in birds (p > 0.05). The seasonal and geographical distributions of the population of lice were analyzed by the Z-test which showed the spatial frequency was significantly variable (p
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