VARIABILITY. 
131 
V 
XIV. 
a ge 
.Marked and coloured almost as symmetrically 
the 0 ftural species. In laced and spangled fowls 
d fe ft 0 |° Ure d margins of the feathers are abruptly 
but in a mongrel raised by me from a black 
l)r ;iJ P c °ck glossed with green and a white game 
to*;," ^he leathers were greenish -black, excepting 
bm their extremities, which were yellowish-white ; 
bii Ses p vv een the white extremities and the black 
Vof 
tl llls „ a .P er determines the distribution of the tints; 
tj'ere was on each feather a symmetrical, curved 
dark-bra 
% .^w-orown 
In some instances the shaft ot 
-Un l0 )'th the body-feathers of a mongrel from the 
, ;lc k Spanish cock and a silver-spaugled Polish 
shaft, together with a narrow space on each 
greenish-black, and this was surrounded by 
zone of dark-brown, edged with brownisli- 
/ these cases we see feathers becoming sym- 
the 
fois 
klaj 
ifo. 
*h! 
shaded, like those which give so much 
V e r C f to the plumage of many natural species, I 
H .p° noticed a variety of the common pigeon 
fright i ' v ‘ u g-bars symmetrically zoned with three 
bluy la des, instead of being simply black on a siaty- 
as in the parent-species, 
kt th , dn ^ barge groups of birds it ^ 
• V H tint b'bumage is differently coloured iu each species, 
large groups of birds it may he observed 
"ho c j.g, ce rtain spots, marks, or stripes, though like- 
'^■ T foloo- eientl y coloured, are retained by all the species. 
'hep 0118 cases occur with the breeds of the pigeon, 
’"ay ^ dually retain the two wing-bars, though they 
'pt of loured red, vellow, white, black, or blue, the 
' 
is 
plumage being of some wholly different tint, 
fot- • 1Qore curious case, iu which certain marks 
lf - Ve Csed 1U ° dl though coloured in almost an exactly 
.Gunner to what is natural; the aboriginal 
ds u blue tail, with the terminal halves of the 
K 2 
