1919-] Birds in the North of France. 63 



newly arrived yellow and blue-lieaded wagtails^ and in 

 mid-October in small flocks in the Canclie estuary with 

 occasional pied wagtails. Several round the Canclie estuary 

 at the end of July 1918. 



Motacilla lugubris. Pied Wagtail. 



First seen on 15 October in the Canche estuary ; a few, 

 and occasionally a small flock there for the next four weeks. 

 A cock bird at Fouquieres near Bethune on 19 February. 



Motacilla boarula. Grey Wagtail. 



A few in winter : in March 1917, near Pont Remy on the 

 Somme ; in November on the cliffs at Wimereux near 

 Boulogne ; not uncommon near Bethune, Avhere I saw it 

 at Moat Farm (one of the keeps at Givenchy), at "Windy 

 Corner/' Le Plantin, and in other places. 



Motacilla rail. Yellow Wagtail. 



Passing at Brie on the Somme in fair numbers with blue- 

 headed Wagtails from 20 to 27 April; on the last date 

 M. fava outnumbered them by ten to one. On 30 July, 

 1918, I saw a hen by the Canche estuary which I think 

 was certainly of this species ; it had a yellowish eye-stripe. 



Motacilla flava. Blue-headed Wagtail. 



From 20 to 27 April passing at Brie in large numbers ; 

 between thirty and thirty-five on 4 Sejitember at Achiet le 

 Petit. I did not see one bird during the summer. 



Anthus trivialis. Tree-Pi i)it. 



First seen, half-a-dozen in number, on 17 April at Peronne 

 citadel ; common in Havrincourt Wood in June ; a few 

 near Amiens in July. 



Anthus pratensis. Meadow-Pipit. 



A few seen near Peronne in April, but none east of that. 

 Common at Rouen and Etaples in October, and at Le 

 Touquet in May. In December not uncommon about the 

 Givenchy firing-line and in the district round Bethune 

 during: tlie winter. 



