556 Capt. Sapix e's Memoir on the Birds of Greenland, ác. 
the neck; the black of the back of the neck extends down the 
back, but in the centre of the upper part of the back near the 
neck is a patch of black feathers edged with ferruginous; the 
scapulars are long and narrow, black ia the centre and edged 
with ferruginous-white, the longer ones having more white; 
the wings are a brownish-black, the quill feathers being the 
palest ; the lower belly and sides to the rump and the under tail- 
coverts are white, a line of black descending between the white 
from the back to the tail; of the four middle tail-feathers two 
are eight inches, the others are about four and a half inches long. 
Briinnich gives this bird in five different states of sex and plu- 
mage, the second (No. 76) is the male in summer plumage. Mon- 
tagu, in the Appendix to his Supplement, has described the trachea 
well; the figures in the annexed engraving, Tab. XX X. fig. 3 and 4, 
will convey a very correct idea of its appearance: it is most curi- 
ous and singular in its construction ; the window-like formation 
at the lower part next the tympanum is particularly so. 
Subjoined is a complete list of the birds of Greenland, as far as 
I conceive they are at present ascertained; the Fauna Groenlan- 
dica has been taken as the foundation thereof, and the alterations 
which appear to be necessary have been made in it. 
The species enumerated by Fabricius are fifty-four: I have re- 
duced five of these, considering them as synonyms of some of the 
others, but have enlarged the list again by the addition of an equal 
number of species which had not fallen under the notice of that 
author; the names of the five reduced species are placed in italics 
under those to which I have referred them; and the added spe- 
cies are marked with an 4; in those cases where I have given the 
bird of the Fauna Groenlandica under a more correct name, the 
synonym of that work follows in the same line in italics. The birds 
which are marked * are described in the preceding pages. 
1. Falco 
