894 Mr. J. D. D. La Touche on the [Ibis, 



flying alon^i,' the seushoi-o in company with llonse-Swallows. 

 Perc David found tliis Martin breeding in the mountains 

 to the west of I'ekiuii,-. I liave another exumpUi shot at 

 Sliaweislian on the 10th of May, 1908. The Rev. Geo. 1). 

 Wikler, of Peking, has informed n)e that lie saw a few pairs 

 breedin<4' on rocks in tlie mountains to tlie north-west of 

 Chinwangtao. 



112. Cotile riparia (L.). 

 Cotyle riparia D. & O. p. 128. 

 Cotile riparia La T. [). 574. 



■ ^riie Sand-Martin j)asses in gicat numbers from about the 

 10th of August to early mid-October. The birds travel in 

 company with Ilouse-S wallows. Swifts ;ui(l other bii'ds, the 

 bulk of the migrants passing during the lattei' half of August 

 and in early September. The spi-iug migration is not often 

 a})[)arent and in most years not many biids are seen. On 

 the 17th and 19th of May, 1913, great numbers passed the 

 port. Without doubt, this bird breeds in the vicinity. 



113. Ptyonoprogne rupestris (Scop.). 

 IHijunoproijiw rupcstih 1). ^ O. p. 129. 



The Crag Martin breeds iej;uhirly in tin; Shanhaikuan 

 mountains. In 1915, my collector inlormed me that the 

 birds first appeared on the 6th of April. 1 saw one that year, 

 on tiie 2ud of May, circling high over a rock where the birds 

 are said to Ijreed every year. 



114. Hirundo rustica gutturalis Scop. 



Hii undo gntlural'is 1). & 0. p. 121; La T. p. 574. 



The earliest record 1 have of the apj)earance of the Eastern 

 House-Swallow at Chinwangtao is tlu; 10th of Api'il (1913). 

 The spring passage lasts from about that date until the last 

 days in May. This Swallow passes again from about the 

 first week in August, and birds are to be seen migrating 

 until about the middle of October. I saw a belated bird on 

 the 1 7th of November, 1912. The local summer l)irds arrive 

 later than the migrants. They begin to build about the end 

 of April. They leave towards the end of August, but in 



