86 EGGS AND EGG-COLLECTING. 



tliat bird is blacky below tlie nape. Its nest, and the 

 situation in which it is placed, do not differ from that of 

 the bird just named. The eggs are also similar, but are 

 said to be subject to greater variation in colour and 

 markings. 



THE BLUE-HEADED WAGTAIL. 



The nest of this somewhat rare visitor has several times 

 been found in Northumberland, and it has in all prob- 

 ability nested on many occasions elsewhere, without its 

 identity being clearly established. The nest is made of dry 

 grass, fine roots, and moss, lined with hair and occasionally 

 a few feathers, and is situated on a bank or amongst grass 

 or corn in a similar position to that of the Yellow Wagtail. 

 The eggs number five as a rule, but six are sometimes 

 found, of a yellowish-white ground colour, spotted, freckled, 

 and clouded with light brown, and occasionally streaked 

 on the larger end with fine blackish-brown lines. 



MONTAGU'S HARRIER. 



Although this bird rarely breeds with us now, its nest has 

 occasionally been met with in recent years in the southern 

 counties. The nest is placed on the ground amongst 

 heath, fern, furze, or growing crops, and consists of a few 

 twigs, straws, and bits of dead grass. Its eggs number 

 from four to six, of a faint bluish-white, and are on 

 rare occasions marked with a few light reddish-brown 

 spots. 



