Treecreepers (Certhiidae)

Eurasian Treecreeper (Certhia familiaris) - HBW 13, p. 181

French: Grimpereau des bois German: Waldbaumläufer Spanish: Agateador Euroasiático
Other common names: Common/European/Northern Treecreeper

Taxonomy: Certhia familiaris Linnaeus, 1758, Europe = Sweden.
Formerly treated as conspecific with C. hodgsoni and C. americana, but both of these differ genetically and vocally from present species. Isolated Corsican race (corsa) rather distinctive, but appears to be related to macrodactyla. Geographical variation otherwise minor, to some extent clinal, plumage becoming paler and greyer and white streaking better defined E from N Europe (slightly paler, greyer birds from E European Russia and W Siberia once separated as race “rossica”), but this cline reversed in SE Russia (Amurland), NE China and Japan; also, a cl.. View all taxonomy...

Taxonomy: Certhia familiaris Linnaeus, 1758, Europe = Sweden.
Formerly treated as conspecific with C. hodgsoni and C. americana, but both of these differ genetically and vocally from present species. Isolated Corsican race (corsa) rather distinctive, but appears to be related to macrodactyla. Geographical variation otherwise minor, to some extent clinal, plumage becoming paler and greyer and white streaking better defined E from N Europe (slightly paler, greyer birds from E European Russia and W Siberia once separated as race “rossica”), but this cline reversed in SE Russia (Amurland), NE China and Japan; also, a cline of increasing colour saturation in Europe from N (nominate race) to S & W (macrodactyla), British birds (britannica) representing W extension of cline; nominate race intergrades with macrodactyla in W (Germany-Poland region) and with daurica in E (Yenisey basin, in SC Siberia). S races persica and tianschanica closely resemble nominate, and perhaps better merged with it. In extreme E of species’ range, proposed races kurilensis (described from Kuril Is) and orientalis (from R Sidemi, in S Ussuriland) treated as synonyms of daurica; kurilensis, however, possibly exhibits some constant differences in coloration from last, and may merit recognition; further study required. Ten subspecies recognized.

Subspecies and Distribution:

  • britannica Ridgway, 1882 - Ireland and Britain (except Is of Scilly, Orkney and Shetland).
  • macrodactyla C. L. Brehm, 1831 - W Europe E to Poland (R Oder), Slovakia and C Hungary, S to N Spain (Cordillera Cantabrica, Sierra Cebollera and Pyrenees), Italy (Alps, locally Appennines S to Abruzzese) and NW Croatia.
  • corsa E. J. O. Hartert, 1905 - Corsica.

     See all 10 subspecies
  • britannica Ridgway, 1882 - Ireland and Britain (except Is of Scilly, Orkney and Shetland).
  • macrodactyla C. L. Brehm, 1831 - W Europe E to Poland (R Oder), Slovakia and C Hungary, S to N Spain (Cordillera Cantabrica, Sierra Cebollera and Pyrenees), Italy (Alps, locally Appennines S to Abruzzese) and NW Croatia.
  • corsa E. J. O. Hartert, 1905 - Corsica.
  • familiaris Linnaeus, 1758 - Fennoscandia and E Europe (from Poland) E to W Siberia (Yenisey basin), S to Greece (Pindos range and N mountains E to Rodopi range), NW Turkey (Thrace) and N Ukraine.
  • daurica Domaniewski, 1922 - SC Siberia (from Yenisey basin) E to S Sea of Okhotsk, Sakhalin I and Kurils (Urup, Iturup and Shikotan), S to NE Kazakhstan, N Mongolia, NE China (Heilongjiang S to Liaoning, N Hebei and Beijing), SE Russia (Amurland, Ussuriland), N Japan (Hokkaido) and N North Korea.
  • caucasica Buturlin, 1907 - Crimea, Caucasus, N Turkey; Georgia, Armenia and Azerbaijan (including Talysh Mts).
  • persica Zarudny & Loudon, 1905 - N Iran (Elburz Mts E to Gonbad-e-Kavus).
  • tianschanica E. J. O. Hartert, 1905 - SE Kazakhstan and Kyrgyzstan E in Tien Shan to NW China (Xinjiang E to Hami).
  • bianchii E. J. O. Hartert, 1905 - N China in E Qinghai, NW & W Gansu, Shaanxi (N flanks of Qin Ling Range) and Shanxi (Pangquanguo Reserve).
  • japonica E. J. O. Hartert, 1897 - S Japan (Honshu, Shikoku and Kyushu).