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eagerness, in driving aM’ay every rival or feathered 
intruder from the sanctuary of its abode. Its song is 
not so nnmelodions as that of the Sijlcia olhetorum, 
and is more like that of other memhers of its family, 
as S. Idppolais, the IMelodioiis Willow Wren, or 
Latham’s Pettychaps, of British naturalists. It is also, 
like the Olive Tree Warbler, very difficult to eapture, 
keeping constantly at the top of the olive trees, hopping 
and gliding among the foliage, which has the same 
eolonr as itself. 
The Olivaceous Warbler builds in the middle of May, 
in the same situations, and a similar nest to the Olive 
Tree Warbler. The nest is, however, smaller and less 
industriously made, though the materials are the same. 
It lays four or five eggs, pale grey green, without any 
shining glossy flush, covered with large black or 
small greenish black spots. 
Brehm, in Biideker’s work, remarks of this species: — 
^‘It is an inhabitant of Greece, smaller than the Olive 
Tree Warbler, and of a duller plumage. It builds its 
nest of strips of inside bark, and fibres of roots, with 
thistle down, and lines it with spiders’ web. It lays, 
beginning of June, five eggs, smaller, and duller in 
colour than those of the Olive Tree M'arbler. Ground 
colour grey white, scarcely at all tinted with reddish, 
and marked with vdolet spots, and blackish and brownish 
points and small dots, sometimes only at the base, but 
at other times scattered over the whole egg.” 
The adult male and female have the head and all 
the upper parts of the body pale greyish brown, with 
an olive tint, more indistinct on the lower part of the 
back; a yellowish streak from the nostrils over the 
eyelids; on the angle of the mouth and chin some 
blackish hairs. Wings and tail greyish olive brown; 
