226 
MIGRATION OF BIRDS 
their winter quarters, but remain here throughout the year. 
Such birds are probably immature, and, not being in a condition 
to breed, have not undertaken the journey, but others are 
certainly old birds which, through lack of condition, have been 
unable to move off with their fellows. 
Uganda and East Africa are extremely well placed with 
regard to migrants, for through and to these countries come birds 
from Europe, Asia, and to a less degree West and South Africa. 
I shall now confine myself to a few general remarks re- 
garding migration as seen in this country. 
The first month in which one may expect to see migrants 
is in the latter part of July and beginning of August, but the 
greatest numbers are to be seen in October, and one can count 
on seeing several species up to the end of March and occasionally 
till May. As already mentioned, a certain number do not 
leave this country at all. 
The best places to look for migrants are along the banks of 
rivers and lakes and amongst swampy ground and on the out- 
skirts of forests ; and for most waders, along the coast. 
I should now like to bring to your notice various examples 
of migrants — European, Asiatic, and South African — which 
have been procured in this country, mentioning briefly the 
countries in which they breed, noting their date of arrival 
and departure at and from these places and comparing them 
with the dates of collecting the specimens exhibited. 
You will thus be able to realise what a rich country this 
is for the study and observation of the various aspects of one 
of Nature’s most wonderful phenomena. 
1. The Golden Oriole ( Oriolus galbula) is a spring visitor 
to England, some few remaining to breed in suitable localities 
in the southern counties. Principal nesting-areas : countries 
south of the Baltic. They nest in May and June. 
During their northward migration they have been noted 
to pass through Egypt in April. They have been collected 
by me in this country between October and April. 
During October of 1916, Orioles passed through my garden 
at Nairobi on their southward migration ; some remained for 
a few days. In November another flock of eleven arrived, 
most of them young birds. They were seen or heard for a 
