July 9, 1774

Posted by sydney on Jul 9th, 1774

Young swifts helpless squabs still. Young martins not out.

*  I procured a bricklayer to open the tiles in several places of my Bro.s brewhouse in order to examine the state of swift’s nests at that season, & the number of their young.  This enquiry confirmed my suspicions that they never lay more than two eggs at a time: for in several nests which we discovered, there were only two squab young apiece.  As swifts breed but once in a summer, & the other hirundines twice: the latter, who lay from four to six eggs, encrease five times as fast as the former: & therefore it is not to be wondered that swifts are very numerous.

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July 1774
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