48 
C orrcs pundcncc 
'' the same family and are likely to he spiteful with all weaker Parrakeets 
" when breeding. Unpaired birds much less (piarrelsome. Pairs will 
" usually agree reasonably with birds other than Parrakeets, but might 
■' injure nestlings. Mischievous with growing plants but do not damage 
" woodwork. Hens rather subject to egg-binding, and untried ones should 
" not be allowed to lay in chilly weather or after being kept short of exer- 
" cise. The species is not noisy. 
" If a member were to ask for particulars of my stock for sale, I should 
" reply : 3 unrelated pairs of young birds, indoors, good condition, 
" price 30s. each bird. 
" I will send you the Blue-wing article shortly, 
" Yours sincerely, 
" TAVISTOCK." 
[The above scheme appears to be c^uite a workable one, but the extent 
of its success depends entirely upon the response of meinbers thereto. We 
ask a full consideraton of its details, are open to suggestions, and ask as a 
first step that members having proved breeding pairs, which they may reason- 
ably expect to breed again this season, to send in their names as breeders of 
such species, then at as early a date as possible a complete list (catalogue) will 
be published in the inset (coloured pages) of Bird Notes. There is no reason 
why a commencement should not be made at once, even in these abnormal 
times, then when times become normal a working scheme will already be to 
hand and can easily have its scope enlarged. In such cases members should 
give the matter immediate attention and send in their names, together with 
the names of their breeding pairs, at once to the Editor, so that the catalogue 
may appear as early as possible.- — Ed.] 

Birds of British Guiana. 
By Chas. Dawson, S.J., M.A., (Oxon). 
(C ontinucd from page 266, I'ol. I'll ., Nczv Scries). 
HUMMING BIRDS. 
These small but wonderful creatures excel all other birds 
in their power of flight, and rival precious stones in the lustre 
of their colour patches. Some are adorned with crests, ear-tufts, 
frills, or pendants; and in some species the tiny feet emerge from 
little puffs of snow-white feathers. The wings are .long, but 
narrow, and the tail sometimes assumes fantastic shapes. They 
were happily named TrochUidac from a Greek word denoting 
the swift spinning roller of a windlass; for their wings, moved 
