Hodgson's treecreeper
| Hodgson's treecreeper | |
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| Presumably nominate subspecies Kullu District (Himachal Pradesh, India) |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Certhiidae |
| Genus: | Certhia |
| Species: | C. hodgsoni |
| Binomial name | |
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Certhia hodgsoni Brooks, 1871 |
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| Range in pink Common treecreeper range in light green |
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| Synonyms | |
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Certhia familiaris hodgsoni Brooks, 1871 |
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Certhia familiaris hodgsoni Brooks, 1871
Certhia familiaris khamensis Bianchi, 1903
Certhia familiaris mandellii Brooks, 1874
Hodgson's treecreeper (Certhia hodgsoni), is a small passerine bird from the southern rim of the Himalayas. Its specific distinctness from the common treecreeper (C. familiaris) was recently validated.
This is a small bird, 12.5 cm (4.9 in) long, of fairly drab appearance. It is brownish with lighter and darker streaks above, and off-white below and on the supercilium. It is browner above than the common treecreeper (C. familiaris), with a contrasting rufous rump. It has a long curved bill and long stiff tail feathers.
The song starts with two of the shree calls characteristic for this species and its close relatives. Then follow one or a few warbling calls, and finally (usually) two up- and downslurring notes. Each sound is about 0.3 seconds long, and the whole song takes about 2 to 2.5 seconds. It drops in pitch at a constant rate from around 7.5 kHz initially to 6 kHz, slurring down to 4 kHz once or twice in the end.
It has three subspecies, from west to east:
This treecreeper was formerly included in the common treecreeper (C. familiaris), but is now believed to constitute a distinct species. It is the southeastern representative of the Holarctic lineage of treecreepers, most closely related to its sister species C. familiaris and to the North Atlantic superspecies short-toed treecreeper (C. brachydactylata) and American treecreeper (C. americana).
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