SECOND WEEK IN JUNE 131 
Later in the season I saw these youngsters 
flying about near by. Their parents were 
very attentive to them and fed them assidu- 
ously. Both they and their parents seemed 
fond of telegraph wires, on which they appear 
to get a firm perch. A wagtail is so called 
because it wags its tail whilst on the ground 
up and down (not from side to side) and that 
continuously. ‘The tail is long and drooping, 
the two outer feathers being white and show 
markedly in flight. They keep much to the 
ground but also perch frequently. The flight is 
louping (or undulating), that is of a jerky des- 
cription. So these characteristics at once mark 
these birds. There are three British wagtails,! 
(1) The Yellow Wagtail, about six inches long, 
and (2) and (3) the Pred Wagtail and the Grey 
W agtail, a little longer (seven anda half inches). 
The Yellow wagtail is so called because its lower 
parts are yellow, and there is a yellow streak 
over the eye (back and upper parts of wings 
greenish olive). The pred receives its name be- 
cause it is black and white, and the grey because 
1 They are about the size of sparrows, but have long 
tails. 
