Comparative study of environmental habitat biological and physical components of nests of house sparrow, collared dove and white – cheeked bulbul in Baghdad
This is a first and novel native study aimed to investigate the biological and physical components of nests of three birds of Iraq included house sparrow (Passer domesticus), collared dove (Streptopelia decaocto) and white – cheeked bulbul (Pycnonotus leucotis) in Baghdad city. This study was carried out during the period from January to October 2017. Mechanical analysis for nests biological and physical components were carried out on three of Iraq birds house sparrow (Passer domesticus), collared dove (Streptopelia decaocto) and white – cheeked bulbul (Pycnonotus leucotis). A total of 26 (12, 9 and 5 for each bird respectively) nests were collected from different region of Baghdad city using the mechanical analysis and were deconstructed into their component parts and these were then arranged in order or classes. The nest materials were differed according to bird species and ecology, nest materials classified as plant matter, animal matter, anthropogenic matter and unidentified. The nests had two distinct layers, the structural layer and the inner layer.