A HOUSE WREN'S DAY 



191 



Date of starting May 8 May i8 



Time to build nest 8 days 7 days 



Time to lay eggs (7) 7 days 7 days 



Time to incubate eggs 13 days 1 1 days 



Time young are in nest 17 days 14 days 



Total time 45 days 39 days 



It will be noted that the birds which began to nest later in the 

 season completed their work six days quicker than those which 

 began earlier. 



One of these nests was found to contain 1000 sticks. As the 

 nest was completed in seven days, that would mean that about 

 150 sticks were brought in one day, or 10 per hour. 



During the summer of 19 14 a pair of Baltimore orioles was 

 watched in a similar way for a day, with the following results : 



Times Fed 



