434. Pycnonotus plumosus plumosus

(434) Pycnonotus plumosus plumosus Blyth.
The Singapore Large Olive Bulbul.
Pycnonotus plumosus plumosus, Fauna B. I., Birds, 2nd ed. vol. i, p. 419.
As I have remarked in vol. i of the ‘Fauna,’ it is very difficult to define the limits between this bird and P. b. robinsoni. Apparently the present is a Western form, being found from Singapore, the Malay States in Johore, Pahang, Perak, Keda and thence Up the West coast of Tenasserim to the town of that name. It also occurs in Sumatra and Borneo. For the present I prefer to retain plumosus and blanfordi as species, following Kloss and accepting his dis-tributions.
It is a Bulbul of forest and dense jungle ; Davison says that it “keeps chiefly to the forests, though occasionally occurring in more open ground.” Kellow obtained it in dense forest and in the adjoining bush and scrub-jungle ; Moulton found it breeding in thick jungle, making its nest in low bushes.
The Waterstradt collection had a fairly long series of these eggs but no details with them beyond the date and place at which they were taken.
Six nests with eggs, out of eight of which I have any record, were taken in March, from the 5th onwards, one on the 5th of April and one on the 17th May.
Nests sent me by Moulton, the parent birds of which are now in the Sarawak Museum, are rather shallow cups made of grass-stems, a few weed-stems, roots and dead leaves fairly well put together, the weed-stems being used principally to bind together the loose leaves. The nests are quite well lined with fine grasses. The sites selected were low bushes on the outskirts of forest.
They were typical Bulbuls’ nests, very like those of Otocompsa but neater and more compact.
Kellow and his collectors took several nests and eggs, and the former, sent to me, were like those just described. These, too, were placed either in small bushes in forest or in cane-brakes, a similar position to that in which Davison took his nest. All nests seem to have been placed very low down between 1 and 3 feet from the ground. .
The eggs are just like those of Otocompsa jocosa and my small series has them varying from the white type scantily speckled with purple to the almost uniform deep red blotched egg with warm pink ground. Looking at them as a series I should have put them down as Otocompsa eggs and not those of a Pycnonotus.
The full clutch is two or three. I have a so-called clutch of five brought in to Kellow but I am sure two clutches have been mixed together or two birds have laid in the same nest, a not altogether unknown happening. The nest was quite a typical nest and Kellow considered the taker trustworthy and he had nothing to gain by deceiving.
Twenty eggs average 22.0 x 16.4 mm. : maxima 24.5 x 16.5 and 21.0 x 17.2 mm. ; minima 19.7 x 16.1 and 20.5 x 15.4 mm.

The Nidification Of Birds Of The Indian Empire
Baker, Edward Charles Stuart. The nidification of birds of the Indian Empire. Vol. 1. 1932.
Title in Book: 
434. Pycnonotus plumosus plumosus
Spp Author: 
Book Author: 
Edward Charles Stuart Baker
Page No: 
Common name: 
Large Olive Bulbul
Pycnonotus plumosus plumosus
Vol. 1

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