{{cite journal | last1=Zia | first1=U. | author2=M. S. Ansari | author3=S. Akhter | author4=B. A. Rakha | year=2014 | title=BREEDING BIOLOGY OF RED VENTED BULBUL (PYCNONOTUS CAFER) IN THE AREA OF RAWALPINDI/ISLAMABAD | journal=Journal of Animal and Plant Sciences | volume=24 | issue=2 | pages=656-659 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2014-JAPS-91}}