AND SOME OTHER HAKE EUROPEAN WARBLERS. 
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Phi/llasru/tus trial it resembles our Common dufl'chaff, but is 
slightly smaller, browner above and rather whiter on the under- 
parts, the legs are blackish brown, nearly black instead of light 
brown ; total length 4 inches, wing 2.3 inches. The third, 
fourth, and fifth quills are nearly equal, the fourth being a trifle 
the longest, and is the longest of the primaries. 
Pki/lloscojjus borealis is about the same size as, and is coloured 
likes, our Common Willow Wren, but has a broad superciliary line 
passing over each eye to the nape. The wings are crossed by two 
bars, the bastard primary is very small, the exposed portions 
measuring about 0.32 inch, the third and fourth primaries are 
longest, the fifth much shorter, the sixth considerably shorter than 
the fifth, the second intermediate between the fifth and sixth ; 
total length about 1.8 inches, wing 2.7 inches. 
Plujl Iosco pns viridanna is coloured much like the Willow Wren, 
but is rather brighter and greener in tone of colour on the upper 
parts. It has, however, a clearly defined bully yellow streak over 
each eye, and the larger wing-coverts are broadly tipped with dull 
white forming a single alar bar; total length about 44 inches, 
wing 2.3o inches. The third, fourth, and fifth quills are the longest, 
the fourth being if anything the longer, the second is intermediate 
between the seventh and eighth, and the bastard primary is 
tolerably large, the exposed portion measuring fully half an inch. 
Phi/lloscoptis nit id as has the upper parts bright green, the 
under-parts sulphur yellow, thus more closely resembling the Wood 
Wren in tone of colour ; it has, like the preceding species, a distinct 
superciliary stripe, sulphur yellow in colour, and it has two pale 
yellow bands crossing the wing ; total length about 4.65 inches, 
wing 2.4 inches; second primary shorter than the sixth. 
Acrocephalua agricolua resembles the Keed Warbler, and may 
bo mistaken for that species unless carefully examined. It is 
however smaller, the upper parts are pale warm rufous brown, 
brightest on the rump, and the under-parts are white, tinged with 
warm buff on the flanks and lower abdomen ; over each eye a light, 
almost white streak passes; total length about 5 inches, wing 
2. 2d ; wing short and rounded, the secondaries only 0.45 inch 
shorter than the longest primary ; first primary narrow and short, 
about 0.15 inch longer than the wing-coverts, second intermediate 
