the coloration problem. 77 



Time.— 12.35. Sex.— $ . 



Food. — Unidentified. 



Time.— 12.40. Sex.— ^. 



Food. — A collection of Geometer larvae. 



Time.- 12.47. Sex.— $ . 



Food. — Unidentified. 



Time.- 12.55. Sex.— <? . 



Food. — Unidentified, 



Time. — 1 p.m. Sex. — J . 



Food. — Unidentified. 



Time. — 1.5. Sex. — $. 



Food. — Four green Geometer larvae, not brumata nor dilutata, more 

 like a Cidaria. 



Time.— 1.10. Sex.— ,?. 



Food, — Larvae. 



Time.— 1.12. Sex.— 2 . 



Food. — Two or three larvae. 



[Note. — At 1.30 I left nest until 2.35. Resumed; particulars as 

 before. Duration.— 1 hour 15 minutes.] 



Time.— 2.46. Sex.—,? and 2 . 



Food. — Green larvae, a number. 



Time.— 2.48. Sex.— ? . 



Food. — One green Geometer larva. 



Time.— 2.50. Sex.— 2 . 



Food. — Unidentified. 



Time.— 3.12. Sex.— 2 • 



Food. — Unidentified. 



Time.— 3.35. Sex.— 2 • 



Food. — Five green Geometer larvae. 



Time.— 3.40. Sex.— 2 • 



Food. — Larva. 



Time.— 3.50. Sex.— a". 



Food. — Unidentified. 



[Note. — These birds were so quickly back and fro, that I know I 

 missed them whilst writing in my note book.] 



Observers. — W. P. Curtis and E. Time. — 8.30 a.m. 

 H. Curtis. 



Date.— May 9th, 1914. Sex.—? 



Place.— Canford, Dorset. Duration.— Casual. 



Food. — Two chased a Coreviia ferruyata but spotted us watching and 

 bolted into the bushes. 



[Note. — Here again difficulty arises in summarising owing to the 

 observations of 7th and 29th June, 1913, but it was impossible to count, 

 putting the most adverse construction possible I will count the first as 

 two attacks, one by each parent, and the second as four successful 

 attacks, two to each bird. I do not think it can be said that that is 

 overstating the case, we then have 22 observations. Food identified 

 21 times. Lepidopterous imagines 7 times. Attack once incomplete.] 



