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Jan.31, 2009
The Spences and Carol and I all enjoyed our 3 day 2 night Doi Inthanon
birding trip very much. Mr. Boon, our birding guide, was a pleasant companion
and
a
superb guide, and Mrs.
Boon's meals were wonderful. I would gladly recommend this tour to any
birders headed for Thailand. Sleeping inside the park near Boon's village was
a big advantage as well as an essential part of the whole experience,
and
I would be sorry to
have missed it. Thanks so much. Charles Austin
Garden Grove, CA USA
Bird-watching at Doi Inthanon National Park can be a fun
and an interesting way to discover nature at a leisurely pace.
As you read this article you will learn more about Doi Inthanon than just birds but also about the
environment in which they live.
Of the total of 382 species of birds and 1600 species and subspecies of Butterflies are so far known from Doi Inthanon, at least 266 bird species are resident or were formerly
resident on the mountain. The status of a further 12 bird species is unclear, but breeding is suspected in many of these. The
remainder (104 species) are non-breeding winter bird visitors or passage migrants.
See the video of us birding in the
park and many colorful birds found only at Doi Inthanon or see the video below. Included
are the Golden Throated Barbet, Chestnut-crowned Laughing Thrush, Green-tailed
Sunbird, Siberian Blue Robin, Oriental Magpie Robin, Yellow-cheeked Tit, maroon
Oriole, Grey-chinned
Minivet, Chestnut-vented Nuthatch, Orange-bellied Leafbird, Golden-fronted Leafbird,
Streaked Spiderhunter, Common Buzzard, Red-throated Flycatcher, Chestnut-crowned
Warbler, Grey Wagtail, Blue Whistling Thrush, Grey-backed Shrike, White-throated
Kingfisher,
Flavesent Bulbul, Asian Emerald Cuckoo, Dark-backed Sibia, White-capped Water
Redstart, Dark-sided Thrush, Duarian Leafbird, Blue-throated Barbet, Blue-winged
leafbird, Pied Bushchat, Plumbeous Redstart, Short-billed Minivet, Black-crested
Bulbul.
In this next video (click on this text or see the video below),
got a real good shot of the Blue-whistling Thrush and Green-tailed Sunbird. Other
birds include the Grey-cheeked Fulveta, Asian Emerald Cuckoo (female), Blue-winged
Leafbird, Grey-eyed Bulbul, Rufous-backed Sibia, Scarlet Minivet, Ashy Drongo,
Ashy Bulbul, Black-crested Bulbul, Pale-blue Flycatcher, Blue-throated Barbet,
Crested Serpent Eagle and Barn Swallow.
If the known distribution of species is examined in relation to ecological zone, it can be seen that by far the highest
species total has been recorded in the moist, tall hill evergreen forest lying between 1500 and 2000 meters (Zone 2).
While this may be partly due to coverage (some other vegetation types, for example, pine forest, are less frequently
visited by birdwatchers and certainly support a few more species than recorded here) this nevertheless does appear to
accurately reflect the real differences in bird species diversity among these various zones. The small area of hill
evergreen forest above 2000 meters (Zone 1), has probably been covered even more intensively than Zone 2 and although
it supports a number of rare and local high elevation species which are not found elsewhere, it yet supports fewer species
overall than does Zone 2.
A surprisingly large total (139 species) has been recorded from deforested areas and cultivation above 1000 m (Zone 4).
However, only 59% of the species in this zone are resident, compared with 78% in Zone 2. Fewer species still have been
recorded from the deciduous habitats (Zones 6 and 7).
Doi Inthanon is of particular conservation importance for those species which inhabit the moist hill evergreen forests of the
upper slopes. Some, such as the Chestnut-tailed Minla and White-browed Shortwing, which are abundant around the summit of Doi
Inthanon, occur in Thailand only on those few higher mountain summits which have considerable areas of hill evergreen forest
above 1800 m. Doi Inthanon contains the only significant protected populations of such species in Thailand. The Ashy-throated
Leaf-Warbler is found nowhere else in Thailand while an endemic race of the Green-tailed Sunbird (Aethopyga nipa/ensis angkanensis)
is also completely confined to the summit of Doi Inthanon. Both species are among the more abundant birds found around the summit
of the mountain.
Doi Inthanon comprises some of the tallest and best preserved montane forest found anywhere in the entire country. The predominance
of massive, huge-boled trees may be of particular significance for trunk-foraging species such as the Brown-throated Treecreeper.
The profusion of epiphytes and the lush, moist understorey also contribute to the great variety of foraging niches for small,
insectivorous birds.
Many larger birds, such as the white-winged wood duck and most hornbills,
have probably been extirpated due to hunting pressure. Great hornbills were
last reported by Dickinson ( 1964) and although a single rufous-necked hornbill
(a species which is threatened throughout its world range from the Himalayas
across to Northern Indochina) was reliably seen as recently as 1986, it is
however, appear to have fared better: black eagle, rufous-bellied eagle, and
mountain hawk-eagle are all frequently seen. Although both galliformes and
pigeons have also suffered adversely from illegal hunting, some species are
still fairly common.
WHEN TO WATCH BIRDS ON DOI INTHANON
Doi Inthanon is good for birdwatching throughout the year though perhaps the
best time is from February through to April when most resident species are
breeding and, in addition, a full complement of winter visitors is usually
present. Also, during the early part of the breeding season many of the resident
species are more inclined to be singing or calling and are therefore more easily
located.
The early wet season, during May to July, is also a very interesting time
for the birdwatcher, especially since many species are still feeding fledged
young. In addition, some ground feeding species such as pittas and thrushes,
which favor wetter conditions, now start to breed. Though showers are fairly
frequent at this time, the weather is seldom bad enough to interfere too much
with birdwatching, unless you are unlucky enough to time your arrival on the
mountain with the passage of a deep monsoon trough. Later in the wet season,
however, rain is more of a problem, particularly around the summit, which can
be blanketed in mist and rain for days on end. This period, from July onwards
to October, is usually the quietest period for birds, though even then, many
interesting observations can be made. It is a particularly good time to look
out for passage migrants and for the return of the first winter visitors.
In the video below we wake up at the bungalows, have breakfast and see some very colorful and
rare birds at Doi Inthanon Nation Park near Chiang Mai Thailand.