Singing Red-vented Bulbuls

Singing Red-vented Bulbuls

Red-vented Bulbul (pycnonotus cafer ), photo by Uditha Hettige.

At times in the morning I now hear up to four male Red-vented Bulbuls singing from their regular ‘song posts’ within vicinity of my home garden. Two of them sing from their regular tree tops (i.e. ‘song posts’) of two immediate neighbouring  gardens and the other two from their ‘song posts’ in the gardens further up. I recorded few song repertoires of one of the males in close vicinity and parts of three repertoires are featured below showing some of the different songs that these bulbuls sing during their breeding season.

Sound track below features a part of repertoire with about four different types of songs. Singing of one of the distant bulbuls can also hear in background of this track.

Sound track below features a part of repertoire with about three different types of songs including the ‘ginger beer’ song at the end (the last two songs), which I described in my last posting in the blog.

Sound track below features a part of repertoire with about six different types of songs including a song sounds ‘sweet potatoes’ at the end (the last two songs), as G. M. Henry names this song type under description of vocalization of the Red-vented Bulbul in his classic book on Sri Lankan birds ‘A guide to the Birds of Ceylon’ (1955).

Deepal Warakagoda, 5 Apr. 2012

Red-vented Bulbuls and Scops Owls

Red-vented Bulbuls and Scops Owls

In the morning yesterday I heard calls of mobbing Red-vented Bulbuls from direction of my backyard and inspecting on that I came across a Collared Scops owl (Otus bakkamoena) roosting at a fairly high place on a Bread Fruit tree in the adjoining garden. It was sitting under a clump of large leaves of the tree and two pairs of Red-vented Bulbuls mobbing at the owl while uttering their loud scalding calls. The four bulbuls were later joined by a pair of Purple-rumped Sunbirds (Nectarinia zeylonica) for mobbing the owl.

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Collared Scops owl (Otus bakkamoena), photo by Uditha Hettige

Sound track below features scalding calls the mobbing bulbuls, and also scalding calls of the Purple-rumped Sunbirds towards end.

I heard the bulbuls were mobbing the roosting owl time to time almost throughout the day. This was not a regular roosting place of the scops owls in the area, the pair in this area roosts in the day time at some other place in their territory.  At the late evening I stood in the vicinity of the Bread Fruit tree equipped with my sound recording gear expecting the owl may call at dusk before or after it leaves from its roost. But just at dusk I suddenly heard call of a young scops owl from some distance away. The young owl kept calling for some time and then flew and landed on another tree nearby me.  Although the adult owl didn’t call the young one kept calling and it was soon joined by another calling young owl which flew in from a different direction. Both young birds kept calling for some time before they flew away.

Sound track below features calls of a young scops owls. A hissing sound of the juvenile is very much different from the calls of adult birds.

Deepal Warakagoda, 12 Apr. 2012