OLIVACEOUS WARBLER. 
55 
tip of beak to end of tail, five inches and a half; wing from 
carpus to tip, two inches and seven tenths; tarsus nine tenths of 
an inch; tail two inches and three tenths. 
This is the second Warbler peculiar to the olive 
groves of classic Greece, that has been made known to 
science within the last twenty or twenty-five years. 
Strickland’s discovery of the bird last described in 1836 
led to that of the present species, by Dr. Lindermayer, 
in 1843. Count Miihle remarks that from these events 
we may conclude that many birds, especially such as 
from their trifling size and colouring of the plumage 
so readily escape observation, remain yet to be discov- 
ered. During his residence in Greece, though anxiously 
examining the birds of that country, this species escaped 
his observation. 
The Olivaceous Warbler is at first sight very like the 
Olive Tree Warbler; but if we examine the dimensions 
which afibrd us such valuable means of difierential 
diagnosis, we shall find a full inch difference in size. 
Its plumage is also altogether more of a yellow tint 
than that of its congener. It inhabits, however, the 
same localities, the olive plantations of Attica, where it 
also arrives late and departs early. 
Count Miihle informs us, that, like the Olive Tree 
Warbler, it takes up its abode in the tops of the olive 
trees, and is never seen elsewhere. As volatile and 
restless as its congener, it is yet still more shy, flying, 
as if in terror, from one tree to another; but after a 
certain time returns quickly to its first resting-place, 
and thus it deludes those who design its capture, or 
the discovery of its nest. 
Its piercing shrill cry may be heard repeatedly from 
its retreat; and it is continually engaged, with restless 
