125 
the Birds of the Lower Petchora. 
appear to visit; at least, there we did not meet with a single 
specimen np to the 10th of June, when we left on onr fur¬ 
ther journey down the river. 
■f Motacilla alba, L. 
The White Wagtail appeared for the first time on the 12th 
May, was plentiful while the migration lasted, and was 
perhaps most numerous about the 17th and 18th. We did 
not, however, find it plentiful afterwards, only a few pairs 
haunting each village or farm; but we traced it all the way 
down the river as far as Alexievka. We got the first eggs on 
the 15 th June, at Abramoff. A nest of this bird taken at 
Alexievka is similar in appearance to those found in Norway 
and at Archangel, but is lined entirely with Reindeer's hair 
and two or three spiders cocoons. We did not find the White 
Wagtail north of Alexievka. 
Turdus pilaris, L. 
The Fieldfare was first seen by us at Ust Zylma in flocks 
on the 17th May; and we afterwards found it common as far 
north as Stanavoialachta, where we saw the young birds fre¬ 
quenting the scrub which clothes a great part of the slope of 
the river-bank. We did not see it at Dvoinik. The first 
eggs were procured by us at Habariki on the 3rd June. It 
appears to be a somewhat later breeder here than the Red¬ 
wing. 
-4"Turdus iliacus, L. 
The Redwing appeared at Ust Zylma on the same date as, 
and flying in the same flocks with, the last species. We did 
not .meet with it north of Stanavoialachta, though probably 
it is to be found, and also the Fieldfare, on the lower islands 
of the delta, which we did not visit. 
-j- 1 Cyanecula suecica (L.). 
The Swedish Nightingale is an extremely abundant species 
in North Russia; and in early summer it enlivens by its admi¬ 
rable mimicry every patch of underwood in the forests of pine 
and juniper on the sides of the valleys near Ust Zylma. It is 
abundant also in the birch- and willow-thickets and swamps 
