HEINRICH GATKE : BIRD-NOTES FROM HELIGOLAND. 32 1 



May {contimced). 



irochilus^RuiiciUa phQ^niairus,{tm^\es; Pratincola riibetra^ 

 many ; Saxicola (xnmithc^ females, few ; Motacilla flava, 

 many, half females; A?ithus trivialis, A. pratensis, many; 

 Cuculns canorus, several ; Caprimulgus europceus^ some ; 

 Hirimdo rustica, CheUdo7i urbica^ Cotile riparia, and 

 Cypselus apus, many ; Columba palumbus^ Turtur com- 

 munis^ pretty many; JEgialitis cantiana^ox\&; yE. hiaticula^ 

 many ; Machetes pugnax, Hcematopus ostralegus, Totanus 

 calidris^ and T. glareola ; Anthus campestris, one. 



20th. — S., still, clear, hot. 



Very strong migration. Everything as day before. 

 To1a7iics ochropus, Vanellus vulgaris. 



2ist. — N. by E., slight, clear, warm. 



Again strong migration, all the above species, and in 

 addition, Eudi'oinias moriiiellus and Vaiiellus vulgaris^ 

 old birds, as day before, most likely those whose nesting 

 was disturbed. 



22nd. — N. E., early, thick, overcast, cold, clouds from N.W. 



But trifling migration. Some PhylloscopiLS trochilus^ 

 Motacilla fiava^ and Anthus prate /is is; Linota fiavirostris^ 

 a small flight. 



23rd. — E., slight, clear, hot. 



Strong migration. Falco subbuteo, one ; F. cesalon 

 (female), Ti7iniincuhLS alaiidarius^ and Accipiter nisus^ 

 several ; Lanius collurio, some ; Muscicapa grisola, pretty 

 many ; M. atricapilla (female), Phylloscopus trochiluSy 

 Ruticilla phceiiicurus (female), Sylvia cinerea^ S. hortefisis^ 

 S. atricapilla^ Cyanecula suecica, Acrocephaliis phragjnitis^ 

 and Pratincola rubetra, many ; Saxicola (xnanthe, fewer, 

 females ; Motacilla flava^ many ; M. melanocephala^ some ; 

 A?ithus trivialis, many ; A. pratensis, fewer ; Emberiza 

 horiulana, many ; Hirimdo rustica, Chelidon urbica, Cotile 

 7'iparia, Cypselus apus, Capri/nulgus europcEus, Crex 

 pratensis, Eudroniias 7noriiiellus, Squatarola helvetica, 

 Numenius phcEopus, Totanus glottis, T. ochropus, T. 

 glareola, T. hypoleucus, Turtur coimnunis. 



24th. — S., quite still, warm, clear; afternoon, W. ; 5 p.m., very violent, over- 

 cast, and cold ; evening, clear, still. 



During night and early morning, strong migration ; 

 Ti7inunculus alaudarius, Falco CBsalo7i, and Accipiter nisus, 

 scattered ; Lajiius collurio, Muscicapa grisola, many ; M. 



