Northern Willow Warbler

Phylloscopus trochilus acredula - 4

 

J

F

M

A

M

J

J

A

S

O

N

D

 

 

 

*

*

 

 

 

 

 

 

 

2017
A very 'grey' individual seen near the 2nd Sentry Box on Northwick Warth in the morning on April 19th was putatively this form.
 

2013
A very pale individual possibly this form was seen at Severn View Services and Aust STW on April 16th.
 

1932
A presumed adult was 'obtained' sometime in April near Stoke Gifford.
 

1913
One, a presumed adult was 'obtained' sometime in May at Cowhill near Thornbury.