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Hodgson's Frogmouth Batrachostomus hodgsoni Scientific name definitions

David T. Holyoak
Version: 1.0 — Published March 4, 2020
Text last updated April 5, 2015

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Field Identification

22–27 cm; 51 g. A small Batrachostomus with well-marked sexual dichromatism , but little variation in coloration of adult of either sex. Male rufous-brown above, heavily marked with black, with white spots on scapulars and upper mantle, where may form collar; black, white and rufous pattern below. Differs from B. moniliger in more rufous, less grey, coloration and in stronger patterning on underparts. Female more rufous and with fewer pale spots . Juvenile has soft-textured plumage and differs from adult (both sexes) in coloration, with most of upperparts light rufous, evenly barred with blackish-brown, underparts mainly light buff with narrow dark barring, and rufous tinge on sides of breast.

Systematics History

Editor's Note: This article requires further editing work to merge existing content into the appropriate Subspecies sections. Please bear with us while this update takes place.

Resembles B. moniliger in coloration and pattern, and the two species replace each other geographically, but differences in facial bristles, clutch size, egg size and adult plumage markings suggest that they are probably too dissimilar to be regarded as being very closely related. Sometimes treated as a race of B. javensis, but differences in bill size and structure, development of facial bristles, relative tail length and vocalizations, and also perhaps bare-part colours (bill said to be darker) too great for the two to be considered conspecific or even as very close. Validity of allegedly smaller and shorter-tailed race indochinae sometimes questioned, as measurements overlap with those from NE Indian individuals. Birds from Manipur (NE India) described as race rupchandi, but apparently inseparable from other Indian populations. Two subspecies recognized.

Subspecies


SUBSPECIES

Batrachostomus hodgsoni hodgsoni Scientific name definitions

Distribution

northeastern India (Sikkim, Assam and Arunachal Pradesh south to Manipur and Tripura), Bhutan, northern Bangladesh, and northern and western Myanmar


SUBSPECIES

Batrachostomus hodgsoni indochinae Scientific name definitions

Distribution

eastern Myanmar and adjacent southern China (southwestern Yunnan), northern Thailand, Laos, and central Vietnam

Distribution

Hills and lower mountains of NE India (Sikkim, Assam and Arunachal Pradesh S to Manipur and Tripura) and SE Bangladesh through N, W & E Myanmar to SW China (SW Yunnan), NW Thailand, NW & S Laos and C Vietnam (Annam).

Habitat

Subtropical evergreen forest on hills and lower montane slopes, at 300–1900 m elevation.

Movement

Apparently sedentary.

Diet and Foraging

Diet consists of moths, beetles and other large insects. Recent accounts suggest that food is hawked in air or taken on ground or from branches ; older accounts of feeding behaviour probably unreliable.

Sounds and Vocal Behavior

Call of female (probably territorial song) is a single long whistle, which usually rises and then descends to initial pitch; male call is series of up to ten short, soft rising whistles, e.g. “whaaeee”, at intervals of 1–7 seconds.

Breeding

Season Apr–Jul in NE Indian region; laying in Annam in late Feb or early Mar. Nest  is a small, neat pad composed mainly of the birds’ down, placed on bare or nearly bare horizontal branch  c. 1·5–5 m above ground. Clutch usually 2 eggs, sometimes 1; male incubates during daytime, female in evening twilight and for 1–2 hours before dawn; incubation  and fledging periods and care of young undescribed; nestling has (second?) down bright rufous or dull buff with darker barring.

Not globally threatened. Apparently rare in many parts of E Himalayas and foothills, and certainly rare in Bangladesh; formerly rare in much of Myanmar, except in Chin Hills; uncommon in Thailand, but not regarded as a threatened species there. Current status poorly known throughout range.

Distribution of the Hodgson's Frogmouth - Range Map
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  • Year-round
  • Migration
  • Breeding
  • Non-Breeding
Distribution of the Hodgson's Frogmouth

Recommended Citation

Holyoak, D.T. (2020). Hodgson's Frogmouth (Batrachostomus hodgsoni), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.hodfro1.01
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