APPENDIX. 
Our object in adding this Appendix is simply a wish to make the book 
more complete by adding notices, more or less detailed, of thenests and 
eggs and any interesting breeding-season peculiarities of birds recognized 
as really well entitled to the name of British Birds, but not happening to 
remain within the limits of Britain to breed. The first bird of the kind ig 
that which, in our complete list, is numbered 
7. GREENLAND FALCON. 
The equivalent to Mr. Yarrell’s Gyr Falcon. 
8. ICELAND FALCON. 
These two species are now, I believe, looked upon as established, but the 
differences between them are not excessively striking, except it be to a scien- 
tific naturalist. Myr. Hewitson has figured an egg of the Iceland Falcon 
which he believes may have Jost some of its colour. It was taken from a nest 
made with sticks and roots, lined with wool, which once perhaps was the 
nest of a Raven. The nest in question was in a cliff, and had the remains of 
many sorts of birds—Whimbrels, Golden Plovers, Guillemots, Ducks—strewed 
round it. The egg is of a buffy red colour, mottled and speckled—very thickly 
in places—with deeper red. 
80. SNOWY OWL. 
Sufficiently often met within North Britain (and even occurring sometimes 
in England) to merit a short notice here. It inhabits Sweden, Norway, Lap- 
land and the greater part of Northern Europe. These birds are accustomed 
to take their prey by daylight, and seem, from the accounts received, to be 
