46 THE MIGRATION OF BIRDS 



did we see, save only the wreckage the feeble that 

 fell out by the way/' On April 10th a sudden bitter 

 northerly gale sprang up, and two hours later the 

 steamer was the goal of hundreds of birds, no longer 

 able to face the adverse wind. These were blue- 

 headed wagtails, swallows, martins, pipits, wheat- 

 ears, nightjars, and lesser kestrels. He thinks that 

 the strong ones may have passed on but all the 

 others perished (12). 



