SWALLOW TRIBE. 61. 



NESTS IN WHICH YOUNG BIRDS WER^ FOUND. 



From the unusual quantity of eggs and yoimg 

 deserted b}^ the house-martins on this occasion, 

 it may be inferred, that the desire to perpetuate 

 their species was protracted, in a more than ordi- 

 nary number, of individuals, to the termination of 

 their stay in this country, by the high tempera- 

 ture of the season,* and the great abundance of 

 food consequent upon it. 



The circumstance of fresh laid eggs being in 

 several instances forsaken, furnishes an addi- 



* On referring to my meteorological journal, I find, that the 

 mean temperature of the months of June, July, and August, 

 respectively, was higher in 1826, than in many preceding yeart. 



g2 



