Bird'-Song : and New Zealand Song Birds 
a rapidly developed accelerato takes place, from about six to 
ten or more quavers a second. In the vocalization the i and e 
are short. The sequence is at times varied, as in (20) and (21) 
Whilst the usual notes of the white-head are simply phrases 
such as the foregoing*, repeated either singly, or in various com¬ 
binations, it has also a true song; that is, a continuous strain 
built up of various phrases combined so as not to be mere repeti- 
hJh* 
y^i= 
— i Q , rr 1 ?—ti 
— H-l— — 3-£ -ip ? mmd m * 
NH= 
j. jy 
JJf - 
is tyr ea 
ti.ti te too 
tion. A portion of such a song is shown in (22) ; the phrases 
(1)) and (c) enter into it largely, and these impart the canary 
character to the song. The phrase ( d ) is ( a ) repeated without 
rests, and with an accelerato running through it. These phrases 
are combined in various other ways, but the song is not sustained 
for any great length of time, though it continues, in strains 
similar to the above, with breaks between the strains, at a speed 
