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Journal of Entomology and Zoology Studies
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P-ISSN: 2349-6800, E-ISSN: 2320-7078

Journal of Entomology and Zoology Studies

2015, Vol. 3, Issue 5
Effect of desert climate on singing behaviour of bulbuls

Nail Hasan, Motasim Badri

We studied the effect of ambient temperature on the start of singing for white-cheeked bulbuls (Pycnonotus leucotis) all year round in a quiet site in a desert environment. Bulbuls started dawn chorus almost unusually early towards the end of January which is marked by increasing ambient temperatures and photoperiod and also coincides with the beginning of the breeding season. They continued early singing until July which is marked by decreasing photoperiod regardless of minor temperature fluctuations. This is the first study that shows evidence that daily start of singing is directly and significantly influenced by day to day fluctuations in temperature. It is concluded that early singing is initiated by increasing temperatures and is susceptible to daily fluctuations and that these birds must have evolved to start their daily activities by singing early and foraging before temperature becomes very hot upon sunrise.
Pages : 104-107 | 1661 Views | 81 Downloads


Journal of Entomology and Zoology Studies Journal of Entomology and Zoology Studies
How to cite this article:
Nail Hasan, Motasim Badri. Effect of desert climate on singing behaviour of bulbuls. J Entomol Zool Stud 2015;3(5):104-107.

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