Yellow-crowned Barbet

Of the nine species of Barbets in Borneo, eight are from the genus Megalaima, which are green with the head and neck gorgeously patterned with vivid reds, blues and yellows, the other is the nondescript Brown Barbet Calorhamphus fuliginosus tertius, which is a brown above and whitish below, with reddish throat. 

The main feature of all Megalaima barbets in Borneo is the relentless perisitence of their calls, so much so that after a while, you no longer notice them. Their bills remain closed when calling giving a ventriloquial effect of varying volume.

Yellow-crowned Barbet Megalaima henricii, photo taken in Tawau, Sabah, the ninth and the last barbet of Borneo to be seen for me to complete all the barbets of Borneo. 

This is the Yellow-crowned Barbet,  ranges from lowland to sub-montane (0 to 1,220m), with an unmistakable call that consists of a roll and four 'tuk' notes, repeated: 'trrrrk-tuk-tuk-tuk-tuk, trrrrk-tuk-tuk-tuk-tuk' and on and on ........

Yellow-crowned Barbet

Although I have seen them all, I have only successfully photographed eight of them, the endemic Mountain Barbet Megalaima monticola was observed in Refflesia Reserve earlier but  was unable to take photograph as it was perched right over my head and I could not align my Whimberly head vertically to shoot.

The seven other barbets before this are; (click to link to picture).

* denotes Bornean endemic
Brown Barbet Calorhamphus fuliginosus tertius
Blue-eared Barbet  Megalaima australis
Gold-whiskered Barbet Megalaima chrysopogon
*Bornean Barbet Megalaima exima exima
Red-throated Barbet Megalaima mystacophanos 
*Golden-naped Barbet Megalaima pulcherrima
Red-crowned Barbet Megalaima rafflesii 

The target for 2010 is, therefore, to photograph the Mountain Barbet and complete the collection.

Happy birding.

Photodocument of Wild Birds of Borneo #308


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Chestnut-rumped Babbler

Chestnut-rumped Babbler Stachyris maculata is an active and noisy foliage gleaning insectivore, a common resident throughout Borneo.

Babblers are shy little forest birds, never flying further than necessary and preferring to slip about through the undergrowth near the ground.

The skulking nature of this babbler makes photographing them a real headache. They would just not perch in the open and never remain still even in the cover of the thick jungle undergrowth. Occasional glimpses of them through the thick foliage under the dim forest lighting are the only chances to take their pictures.

Here are a few pictures of them, my lifer (#307 wild birds of Borneo), after losing much hair in the attempt.

 

Happy birding.

Photodocument of Wild Birds of Borneo #307

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Gould's Bronze Cuckoo and Little Bronze Cuckoo

Gould's Bronze Cuckoo Chrysococcyx russatus, a very similar looking bird to Little Bronze Cuckoo Chrysococcyx minutillus. However, Gould's Bronze Cuckoo has a variable amount of buff on the side of the breast and buff edging to the underside of the outer tail feathers, whereas the underside of outer tail feathers of Little Bronze Cuckoo is entirely banded black and white over both webs, and without rufous.

These bronze cuckoos are apparently very common in south and east of Kalimantan as D.A Holmes in his Recent Notes On The Avifauna of Kalimantan (1986), he has more records of bronze cuckoos in the Chrysococcyx "malayanus" group from South and East Kalimantan than from anywhere else in the Sunda Region. [Parker, (1981) demonstrated that C. minutillus, not malayanus, is the correct name for Little Bronze Cuckoo.]

Their taxonomy is still unresolved as some authorities recognise C. russatus as a separate species and others treat C. russatus as a subspecies of  C. minutillus.

Payne (2005), recognised only one species, C. russatus was regarded as a subspecies of C. minutillus. Other authors also recognised these as a single species by putting much weight on their extensive hybridization in Northern Queensland. However, there remain several aspects that need to be resolved before a definitive answer is achieved. Evidence of sympatry (the use of the same or overlapping geographical areas, by populations of related species, without interbreeding) is based on few specimens, and it has not been documented that both forms actually breed in northern Queensland.  A Field guide to the Birds of Borneo by Susan Myers (2009) follows Payne.

Parker's (1981) discovery of specimens of C. minutillus cleis and C. russatus aheneus collected in Borneo from the same locality and in the same month was the main basis for his splitting minutillus and russatus.

Clive F. Mann  in line with Smythies (1999) follow Parker (1981) and keep them separate in his 2009 Annotated Checklist to the Birds of Borneo. Quentin Phillipps follows C.F Mann in maintaining them separate in his Phillipps' Field Guide to the Birds of Borneo (2009).

Here is a  Gould's Bronze Cuckoo's  photo taken in Tawau (my number 306 wild birds of Borneo),  the buff on the underside of the outer tail feathers is evident.

Here is a comparative photo of the Little Bronze Cuckoo showing all black and white underside of the outertail feathers.

Happy birding. 

Photodocument of Wild Birds of Borneo #306

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Additional Reference:
Les Christidi and Walter Boles (2008), Systematics and taxonomy of Australian birds. Australia:CSIRO Publishing.