A BLUEBIRD'S NEST BOX, IN WHICH A PAIR OF BLUEBIRDS REARED THREE BROODS IN 1914, AND AGAIN IN 1915

The prospect of securing a world’s record was so inviting that, during the last week of June, 1915, I made a census of all birds nesting on the acre adjoining our house and barns, with the result that we found fifty-nine pairs of birds with young or eggs in the nest on that acre, the highest number of land-birds inhabiting one acre that has yet been reported to the Department of Agriculture or to any Audubon society. The details of the census are presented below:

LIST OF BIRDS NESTING ON ONE ACRE ADJACENT TO THE HOUSE AND BARNS
OF GILBERT H. GROSVENOR IN THE WEEK OF JUNE 15-21, 1915

(Only pairs whose nests were located with young or eggs in them are counted.)

Flicker*1pair
Bluebird*1”
Yellow Warbler1”
Orchard Oriole2”
Catbird2”
Song Sparrow1”
Chipping Sparrow2”
Phœbe1”
House Wren*14”
Robin7”
Robin7”
Kingbird1”
Martins*26”
Total59pairs
English Sparrows0

The asterisk (*) indicates pairs nesting in boxes put up by the family.

A similar census made of the second adjoining acre showed thirty-three pairs nesting in this area, as follows:

LIST OF BIRDS NESTING ON SECOND ACRE

Song Sparrow1pair
Carolina Wren*1”
Flicker*1”
Maryland Yellow-Throat1”
Brown Thrasher1”
House Wren*4”
Robin2”
Catbird1”
Chipping Sparrow1”
Screech Owl* (no young in nest
June 15, as brood had
already left)		1”
Martins*18”
Towhee1”
Total33pairs
English Sparrows0