34 



pair of birds would be responsible for the destruction of between 

 7,000 and 8,000 insects, chiefly caterpillars ! 



Marsh Titmouse (Parus palustris, Linn.). 



152. Male ; I nee, Chester ; 24th February, 1894. — Bread, 

 a few quartz pebbles and fragments of brick. 



153. Male ; Inee, Chester ; 22nd March, 1894. — Many small 

 weevils, including examples of the Apple Blossom Weevil 

 (Anthonomus pomorum). 



154,155. 1 Male; 1 Female; Delamere, Cheshire; 4th 

 April, 1894. — Both examples filled with small weevils (Apion 

 spp., Or chest es sp., &c). 



156, 157. 1 Male; 1 Female; Aldford, Chester ; 20th April, 

 1894. — Both examples filled with small Apterous gall-making 

 insects (Cynipidce). 



Summary. — 4 contained insects of the injurious group ; 

 1, bread. 



Field Notes. — 158. Seeds. — Frequently seen feeding on the 

 seeds of the Marsh Thistle (Cnicus palustris) at Crickleigh, 

 Gloucester, August, 1904. 



Nuthatch (Sitta caesia, Wolf.). 



159. Male ; Eaton, Chester ; 22nd March, 1894. — Numerous 

 fragments of acorns ; remains of two Dipterous insects ; 

 3 weevils. 



160. Female; Crickleigh, near Gloucester ; August, 1901. — 

 Remains of 3 earwigs (Forficula sp.) ; many small beetles 

 (Scolytidae and Apionidae) ; fragments of 1 plant bug (Hemip- 

 tera). 



Summary. — Both contained insects of the injurious and 

 indifferent groups ; 1, acorns. 



Field Notes. — Feeds during the autumn and winter months 

 upon hazel nuts, seeds of the yew and the Portugal laurel, 

 Norfolk, Gloucestershire, Cheshire, and also in the Wye Valley. 



Wren (Troglodytes parvulus, K. L. Koch). 



Field Notes. — While staying at Witcombe, Gloucester, in the 

 last week of July, 1907, 1 had a young brood of the Common Wren 

 under close observation during many hours per day for 7 days. 



