Wrens and a Hedge Sparrow

A later 'Collectors' puzzle described as 'Vol. 1 - The First of a Series of Six' and in the 09/2001 catalogue.
Shows a wren and a hedge sparrow (otherwise known as a 'dunnock' or hedge accentor).
Also depicts other very small birds: Fire Crest, Goldcrest, Nuthatch, Dipper and Alpine Accentor.

Artist: Thorburn, Archibald, dated 1913
Date: c.2001
Brand: Wentworth Wooden Jigsaw Company
Material: 3-ply wood
Nationality: British-England
Number: 603
Pieces: 250
Series: Thorburn's Birds
Size: 10" x 14"
Theme: Birds
Title: Wrens and a Hedge Sparrow