222 
allen’s naturalist's library. 
AQUATlC WARBLER - acrocepualus aquaticus. 
J fotacilla aqaatica. Gm. Svst Nni - ; 
Acrocephalus aquaticus' Newt ed’ Yarr 9 ? 3 , 
Dresser, B. Eur., if., r gl n i w .’o ''^P’ 3 S ,° ( i8 73 ) \ 
Brit. Mus., v., p So fiSSr'l • • 1 P ' )> Seeb., Cat. B. 
('883); B. 6 P U 9 lS 8 B B ^ ?*?? 357 
Col. Fig. Br. B, nt JSsJ: P o 20 ( i88 3 ); Lilford, 
(1889). P ( 8 Saunders > Man., p. 79 
Adult Male. — -GsiiGnl mlnur 
dearer on the lower back rrnnn^ tawn y-bu<f, becoming 
whole of the upper nans brmdl P ’ ^ , Up , per tail-coverts, the 
to the feathers, &isdncton^^f eaked I W,th b,a F k centres 
wing-coverts blackish, edged with mb? u P pt; r tail-coverts ; 
most secondaries similarlvcolnur- 1 P ■ tawny-biifT, the inner- 
dark brown, with narrow tawm hr J; pnmar y- covert s and quills 
secondaries which appeS ZneZfTT 3 ’ broader the 
bases; tail-feathers diKrZ y rUf ° US near the 
crown of head pale tawny-buff ’ in . ‘ 1 0W ta ' vny ed g es i 
black streak along each si. 1 * f .1 16 c ® ntre > w, tb a broad 
eye-brow of pale buff • check.: 'c crovvn, followed by a broad 
tawny-buff, a little whitJr nn ‘h surf ^ e f)f bod y light 
deeper on the sides of the bodv and m abdomen > an d 
wing-coverts and axillaries whilish ,1 -"t ?, P a ‘ ' co y ert . s ’ under 
I'ill very slender, dark brown above mler onThe buff ; 
d.ble ; feet pale clay-yellow ; ins ha.el’ P ‘ kta len nbTi n, T"' 
oilmen, o - 33 ; wino- 2 \i ■ nil . ul ‘“iengtn, 5 inches ; 
> w, “o> 2 4 > tail, 20; tarsus, 0-85 
In Summer Plumage there are some narrow bind': .1 . , 
the fore-neck and sides of the body This is r ,rh‘‘ Sh streaks on 
circumstance with a Warbler ilJ ’ r S ? ther an unusual 
the under parts be.ng Si consM ? 1 T °[ Streaks 
immaturity 8 g aUy cons,dercd to be a sign of 
•fesa; ?.-*• '» •. we 
broad mesial streak on the crown fl 1n M 1 easl y rac °gn'Sed by the 
extend above the pale eyebrow for to* whnfr f W ° r bl ? ck '«nds which 
bird is hardly a true ,/? , e • lcn t>' th of the crown. The 
like that of the Grasshopper Warbler* ** Th aaJ weak > and more 
very small and does not reach to he end of tM baStard ’ P rimar y » 
second and third primary-coverts are 
Eange in Great Britain. An accidental visitor, but one which 
