. British birds. Birds. OTES. NOTES ON BREEUING-HABITS OF GREY WAGTAIL. During May 1921 I had a pair of Grey Wagtails {Motacilla c. cinerea) under observation during the nesting period. The nest was built upon a branch of virginian creeper, directly beneath a window opening off a staircase, and was in con- sequence easily observed. The first eg^ was laid on May qth ; on the loth there were two eggs ; on the nth three eggs, one of which had what appeared to be a small hole in the side. On that evening there were only two eggs, both intact, the damaged egg having apparently been removed by the b
. British birds. Birds. OTES. NOTES ON BREEUING-HABITS OF GREY WAGTAIL. During May 1921 I had a pair of Grey Wagtails {Motacilla c. cinerea) under observation during the nesting period. The nest was built upon a branch of virginian creeper, directly beneath a window opening off a staircase, and was in con- sequence easily observed. The first eg^ was laid on May qth ; on the loth there were two eggs ; on the nth three eggs, one of which had what appeared to be a small hole in the side. On that evening there were only two eggs, both intact, the damaged egg having apparently been removed by the birds. On May 12th the female was disturbed off the nest at , both birds were about the nest all day, but she did not return to it to sit, and there were still only two eggs at nightfall. On the 13th she was seen to leave the nest at and it then contained three eggs. Incubation started on May 14th, and was shared by both birds, the male doing the larger share during the daylight hours : it was remarked that the female seemed to take very little interest in or trouble about the eggs, spending a considerable amount of time daily in sitting on a window-ledge close by, and whenever she was on the nest, she called to the male after sitting for five minutes or so ; she was also far more timid than he ; ner attitude in incubation was different, she sat stretching herself out over the eggs and nest, whilst he sat erect. On May 23rd there was great fluttering of both birds in and round the nest, and subsequent observation showed that it again contained only two eggs. On this date the birds removed these, forsook the nest and on May 27th com- menced a new one in some ivy on the front wall of the house and about four feet from the ground, this was also forsaken and left unfinished some three or four days later. H. Rait Kerr. GRASSHOPPER-WARBLER NESTING IN LINCOLN- SHIRE. In my list of the Birds of Lincolnshire referred to {antea, p. 57) I did not attempt to give any def
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