observed on the Yenisei River. 495 



my supposed eggs of 1895 beyoud doubt^ can readily be dis- 

 tinguished from those of other Thrushes nesting in the same 

 locality by their pale greyish-blue ground-colour and distinct 

 spots. Four of my clutches somewhat resemble eggs of the 

 Mistle-Thrush, one of which has the blue rather darker than 

 the remainder; in another the eggs are very small and very 

 pale bluish white in ground-colour; one clutch has the 

 ground-colour very pale blue-green and is covered all over 

 the surface of the shell with minute reddish spots. 



I have never observed this Thrush in the pine-forest, but 

 always in the willows fringing the shore and islands, on the 

 topmost boughs of which the male sits and whistles a few 

 rich notes, without any variation, but darts down out of sight 

 at the slightest alarm. It is rather later in nesting than 

 the other Thrushes, and was not seen at Yeniseisk. The 

 nest is of the usual type : a rather untidy structure of dry 

 grass, built in the fork of a willow a few feet from the 

 ground, not so bulky as a Fieldfare's, with a scanty wall of 

 mud and an inner lining of coarse dry grass. The eggs 

 measure from 1-02 in. long by "78 in. broad to 1*18 in. long 

 by '87 in. broad. 



TURDUS NAUMANNI. 



(Dr. Theel, at Yeniseisk and Doodinka.) 



8. "^Saxicola (enanthe. 



A few Wheatears were observed at Yeniseisk, and they 

 became common again below the forest, eggs being taken at 

 Golchika from under a log of drift-wood. 



9. Pratincola MAURA. Eastern Stonechat. 



10. "^IlUTICILLA PHCENICURUS. 



Redstarts were nesting at Yeniseisk, but were not seen 

 elsewhere. 



11. ^CyANECULA SUECICA. 



Bluethroats were common all down the river to lat. 



69° 40' N. 



12. Calliope camchatkensis. 



The Ruby-throated Warbler was not noticed till June 2nd. 



