E. LÖNNBERG, BIRDS FROM TRANSBAICALIA AND MONGOLIA. 37 



fice to regard them only as geographic races or subspecies, 

 €ven if now and then their areas of distribution might overlap. 

 In such a case Hodgson's name nipalensis might cover all these 

 forms of Steppe Eagles, but a third name ought to be used to 

 point out whicli race is meant. 



The two specimens mentioned above agree quite closely 

 with the figures of »Aquila Glitschii Se v.» on »Tab. VI» in 

 Sewertzow's »Oeuvres posthumes» edited by Menzbier in 

 Nouv. Mém. de la Société Imperiale de Moscou T. XV Livr. 3 

 {Moscou 1885). In this plate there is an old and a young bird 

 figured, and quite corresponding to this, n:o 2 of this collection 

 is old, and n:o 3 comparatively young. N:o 2 has like the 

 quoted figure of an old bird no light tips to the greater coverts, 

 to the secondaries, or to the tail-feathers. N:o 3 on the other 

 hand has the greater part of its plumage so much worn and 

 bleached that the original colours are härd to discern but 

 fortunately some fresh feathers are more or less fully developed, 

 too, and on these can be seen that the greater coverts, the 

 secondaries, and the tail-feathers have rather broad light 

 tips washed with fulvous, just as the quoted figure of a young 

 bird of this kind. The general colour of the specimens agrees 

 as well with that of the corresponding figures on the plate 

 quoted. Neither specimen shows any nuchal spöt of fulvous 

 or rufous, nor is such a spöt or band represented on the figures 

 quoted. In contradiction to this, however, Menzbier has 

 stated in »The Ibis» a year earlier (1884, p. 302) that A. 

 glitschii should have »a fulvous-coloured nuchal band». This 

 is thus a discrepancy, but I dåre not say how important it is. — 

 It might, in this connection, be mentioned, that such a fulvous 

 nuchal band is entirely missing in a specimen from Vladicaucas, 

 which has been purchased under the name of Aquila glitschii, 

 and which, although smaller, otherwdse agrees as well with the 

 specimens of this collection as with the^figures quoted. — The spe- 

 cimen n:o 2 cannot belong to the race for which Menzbier used 

 the specific name »bifasciata», because the latter is said to have 

 »primaries, secondaries and tail-feathers not barred» ( »The Ibis » 

 1884, p. 302), but in the specimen n:o 2 of this collection the 

 feathers of the wdng as w^ell as those of the tail are very conspi- 

 cuously barred and the light tips on the greater coverts and secon- 

 daries which are characteristic to ^>A. bifasciata» are also absent 

 as already is stated. Specimen n:o 3 has hardly any bars 



