46 PROCEEDINGS OF THE 



Various articles on the rarer and more interesting species, in 

 Mr Dresser's "Birds of Europe," Parts xlii., et seqq. 



" On tlie migration of Birds in IST. E. Russia," by H. Seebohm, 

 in Eowley's "Ornithological Miscellany," Part iv., May, 1876, 

 p. 239. 



BemarJcs on Migration. 



In the introductory portion of the first of the papers above 

 noted, Mr Seebohm and I have indicated, in a general waj?", the 

 duration of the migratory season of 1875 for birds in the district 

 in which our observations were made, and have taken notice of 

 the numbers of species added to our list from day to day. 

 Further, under each species we have recorded our first recognition 

 of it, along with other particulars, including distribution, habits, 

 and nidification, which matters will also be found treated of at 

 greater length in Seebohm's articles in the "Birds of Europe." 

 In the second of the papers above noted, I have given a list of 

 fifteen of the rarer and more interesting species met with, along 

 with references ; and in the last, Seebohm has already treated of 

 the subject of migration. 



In preparing the following list of species and table of migratory 

 movements, I have desired to confine myself to remarks upon the 

 latter subject. I am aware of the difficulties of the subject and 

 of the imperfection of this table, an imperfection which can only 

 be partially rectified by further and repeated observations in 

 diff'erent localities, in diff*erent years, and by a large staff of 

 observant naturalists, who will tabulate their records so that they 

 can be used for comparison. My desire now is to supply a link, 

 necessarily incomplete though it be, in this long chain of facts and 

 comparisons ; and I hope that some interest may be found to 

 attach to it, and some results, however small, be gleaned from it. 



Our head-quarters for observations during the time of migration 

 in 1875, were at Ust Zylma, 300 miles from the mouth of the 

 Petchora (G5° 2G' N. lat.), and at Ilabariki, a few versts further 

 north, or lower down the river, and the time was between the 

 15th April and the lltli June. 



"We believe that we were stationed rather too far to the west- 

 Ward to meet the main body or direct tide of migrants, and that 

 a large proportion of the species which we afterwards met with, at 

 their more northerly breeding stations, in summer, must have 

 reached these breeding stations by some more direct route, and 



