8 TD BoE® A UsDU BOUIN. BU Deere 
higher than that of the young, or else that some of the adults choose a 
different migration path southward. 
As has been reported to be the case with many tens of thousands of 
white-throats banded throughout the northern states, none has returned to 
this station, or in fact reported elsewhere, although some southern banding 
stations have experienced rare returns of white-throats there banded. 
The same applies to the white-crowns, and in this connection my 
brother, Dr. Louis A. Test, a former president of the Indiana Audubon 
Society, who for many years banded birds at Lafayette, Indiana, without a 
white-crown return, writes me from his present home in the San Joaquin 
Valley, California, that out of 77 white-crowns he has banded there in the 
past 16 months, already 10 have returned to his station. 
The white markings on the outer tail feathers of robins have been 
found to vary considerably in size, and indeed in their presence. In the 
one robin that was trapped in three different seasons the white markings 
differed on each occasion. The rectrices of juncos show similar variations, 
as is well known. 
But enough has been set forth to show that much can be learned of our 
feathered friends through the employment of bird trapping and banding, 
even in a city and to a very moderate extent, and also that the building up 
of this part of Chicago has apparently not disturbed bird migrations as 
much as might have been anticipated. A larger percentage of returns or 
reports, so throwing more light cn migration paths, dispersal, and longevity, 
had been hoped for, but even as it is, the venture has been most interesting, 
especially in revealing the presence of unlooked-for species, some out of their 
usual ranges. 
BIRD-BANDING 
at 4620 Greenwood Avenue, Chicago — (1922-1941 inclusive) 
2) - on = 
& ues , = = ae 
SPECIES = ia 1S SPECIES 5 = Ss 
D = & D ae 
Saw= wie Owalecsssse ce eeeereees 1 1 Nashville” Warblers... 4 1 5 
Downy Woodpecker ........... il uM Magnolia Warbler............-. 1 il 
Sapsucker: sete s eee et orem it il Pine) Warbler. 1 i 
Red-head Woodpeckevr...... 3 3 Palm sWarblers. aes 2 2 
Northern EKlieker. 2 5 5 Ovenbird) 2-4. a5 alah 66 
SIU CORY ae ccchs ee eee 4 1 5 Water “Chrush 2232 13 4 ab 7s 
Stalinist eee 23 23 Connecticut Warbler ........ 4 4 
WowiDil dees 12 eee il! 1 Mourning Warblers. Ff if 
IBELOnZeEdmM Gracia ise 5 5 Maryland Yellowthroat.... 6 6 
Savannah Sparrow ..........-- 1 il 2 Canada sWarblerit: 22s at as 
Henslow’s Sparrow........---- 1 il Redstart.” ti... eee 3 3 
lalebam@lsy —Shotemeeon yg een eee 1 i Catbirds) 2... eee 64 3 67 
White-crowned Sparrow.. 62 4 66 Brown Whrash Cr sees 338) 27 60 
White-throated Sparrow.. 453 447 900 Bewleks) \W leis. 22. eee il 1 
MPeGm SDATLO Wie eee 1 i HOUSE) 4 W.T CD) coe 21 ie 28 
Chippin eas pa bLo wee eee ib a Brown Creeper 4 14 18 
Vela ES PALRO Wee eee 4 if 5 Golden-crowned Kinglet.. al 1 
Slate-colored Junco............ 112 8 120 Ruby-crowned Kinglet .... 1 1 
WW WopakorsWokeh AjbbaKeran we ee il 1 2 Wood - bh sie eeeeee 2 2 
Soiae? FSDEW AMON cee kee eee eee 36 3 SOM IWial Son Si. hn eS hese eee 9 it 10 
Lincoln Sees palo wareseeeee 34 2 36 Gray-cheeked Thrush ...... 27 3 30 
Swainp eSparrow se e 55 8 63 Olive-backed Thrush ........ 23 3 26 
ETO Nagar fh TAO Wes eesee eres cee eee 23 30 53 FLermiit thrash 18 10 28 
EPO WILE Ca i see Se earn ee eee 42 1 43 Robin sees eee 64 9 73 
Car dima]: ee a eee 2 2 
Pong aleys Keb nO See 3 
Black & White Warbler.. 15 2 iy bl SPHCiIn Sas 1352 614 1966 
