Vol. xlii.] 82 



Mr. Percy F. Bunyard exhibited the following eggs 

 from his collection : — 



Sky -Lark [Alauda arvensis). Thirty -four clutches, 

 showing remarkable variation, including four from Orkney 

 showing true erythrism (Brit. Birds, vol. vii. p. 249 ; ' Ibis,' 

 Jan. 1918, p. 184), c/4 and c/2 leucitic eggs, i. e., pure 

 white unmarked, c/3 pure white with conspicuous under- 

 lying markings of pale ash-grey, c/4 remarkably small 

 eggs, average measurements 21*3xl4'9, weight 156 mg. ; 

 heavily zoned and blotched eggs were well represented, two 

 clutches of four were distinctly greenish. 



Wood-Lark {Lullula arborea). A representative series 

 on which Mr. Bunyard read the following paper, "A Com- 

 parative Study of the Eggs of the Wood-Lark (Lullula 

 arborea) and Sky-Lark {Alauda arvensis) " : — 



The earliest records of the discovery of the eggs of the 

 Wood-Lark I find in ' Ootheca WoUeyana,' p. 384. Newton 

 mentions eggs found in 1844 and 1846, though no locality 

 is given. The earliest Suffolk record according to the same 

 author was in 1853. Newton considered about this time 

 it was " a comparatively recent colonist." It is now well 

 established in Suffolk and Surrey. 



Meyer figures the eggs in ' British Ornithology,' pub- 

 lished 1846 (figs. 95), and also states that it was abundant 

 in Surrey, though no mention is made of its having bred. 



The egg figured by Hewitson is undoubtedly wrong. 

 Bucknill apparently was only able to obtain meagre evidence 

 of its having bred in the county (' Birds of Surrey,' p. 145). 

 Mr. G. K. Baynes, Mr. Clifford Borrer, and myself dis- 

 covered and recorded its breeding plentifully in Surrey 

 (Brit. Birds, vol. xiii. p. 226). 



I had previously several times seen and heard the birds, 

 but did not trouble to search for nests, as my requirements 

 had been completed in Suffolk. 



I have never found the Sky-Lark (A. arvensis) breeding 

 on the same ground as the Wood-Lark, though the two 

 species may be found fairly near together. The situation 



