85 



Miiy lOtli. Lancashire (increase). 



„ lOrh/lltb. Isle of Man light. 



,, 11th. Pentland Skerries (numbers arriveJ). 



„ llth/12th. Somerset light. 



., 13th. Lancashire (nest with eggs). Pentland 



Skerries (decrease). 



„ 14th/1.5th. Guernsey and Yorkshire lights. 



,, 15th. Pentland Skerries (slight increase). 



„ 15th/16th. Yorkshire light. 



,, 16th. Westmoreland (nest). 



„ 17th. Derby (nest with eggs). 



„ 18th. Pentland Skerries (decrease). 



,, 19th. Oxford (nest with eggs). 



„ 23r(l. Perth (nest with eggs). 



,, 30th/31st. Isle of Man light. 



