VOL. II. ] Lrelationship of Sparrows. “a5 
AMPHISPIZA BELLI. 
bite~ gga | Sex. Date. | Wing. | Tail. prvi og 
mm mm. mm 
F) September 20, 1887...... 65 67 7.5 
325 $ uanuary 2, 1889.07 55077: 65 69 ff 
507 $ sot UM Bam Lote eeu a are 67 67 7.5 
315 8 December 31, 1888 ...... 72 71 - 
AVOTAUG ic secan. vaca. 67.2 68.5 a2 
845 Q December 26, 1889...... 62 64 6 
AMPHISPIZA BELLI NEVADENSIS. 
Collector's coe hate. | Wing. Se 
mm. mm. sa 
$ November 27, 1887:..... 79 74 iD 
296 3 December 24, 1888...... Wy 71 7.5 
327 6° ldanuary %, 1889-25 ..04 77.5 75 8 
297 $ December 24, 1889...... 79 25°) 8 
849 $  |December 26, 1889...... a on es 
a 3 “ “ 75.5 | 68.5 | 8 
858 ) - = 78 72 8.5 
AVOGYROG (0000 30 ve ress (eee fe. 7 “ag 
S47. 2 December 26, 1889...... 70.5 68 7 
859 @  |December 31, 1889 ...... 72.5 | 70 8 
BVOMNSG. 62... o et 71.5 69 7.5 
The most striking difference in size of the two forms is in the 
oe greater size of the wing of the sage sparrow, alittle morethanten 
millimetres. The differences of tail and bill are not so marked, ., 
being three and one-half millimetres for the tail and about three- as 
S fifths millimetres between the bills. 
