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ADDITIONAL AVIAN SPECIES SEEN 
AT McGRAW WILDLIFE FOUNDATION 
by S. TENISON DILLON, Biologist 
Max McGraw Wildlife Foundation 
Dundee, III. 
These notes are supplements to the listing of 171 bird species noted on the 
McGraw property in 1967 (Dillon, 1968). We include those new species seen 
during the calendar years of 1968 through 1970, and we feature a synopsis 
(Table 1) which states the species, the date first seen, the number initially 
encountered, and the land-use unit upon which it was first found. A de- 
scription of these land-use divisions can be found elsewhere (Dillon, 1970). 
The 39 species listed in Table 1 were personally seen, or were reported 
by current or former Foundation employees with years of bird-watching 
experience, or by Audubon Society members with like experience. In most 
instances two observers were on hand as a cross check. 
One would expect to find most of the listed species in this region 
either as permanent residents, migrant nesters, or migrant visitors, but a 
few require comment. For example, the tufted titmouse and the snow 
bunting, which are common species either throughout or in a portion of 
each year (Smith, 1958), were seen singly and as a flock, but only once in 
three years. It is possible that the snow bunting could have been present 
on weeks when our census was not covering the agricultural lands. I am 
reasonably sure that the tufted titmouse was not accidentally overlooked. 
Another species ranks as an unusual find for this region—the 
Swainson’s warbler. It was positively indentified by Dr. George V. Burger, 
but was not collected. The Swainson’s warbler breeds in the cane breaks 
of southern Illinois (Peterson, 1947) along the Mississippi River and its 
tributaries. To be seen during May in the Chicago areas, about 150 to 200 
miles north of its traditional breeding range, is surprising but not unheard 
of (Smith and Parmalee, 1955). 
The Swainson’s hawk during July is another unusual record. It is seen 
as an accidental migrant in the spring and fall (Smith, 1958), but nests of 
this species in northern Illinois are few and far between (Smith and 
Parmalee, 1955). It is possible that this was a non-breeding bird. Two ob- 
servers saw this bird and both agreed as to its identity. 
The budgerigar and the redheaded Amazon (a parrot) were, in all 
probability, escapees from nearby homes. 
LITERATURE CITED 
Dillon, S. T. 1968. A Bird Census on a Restricted Site in Northeastern 
Illinois. The Audubon Bulletin, Illinois Audubon Society 146 (16-20). 
Dillon, S. T. 1970. Some Observations Concerning Avian Habitat Prefer- 
ences. The Audubon Bulletin, Illinois Audubon Society 155 (1-8). 
Peterson, R. T. 1947. A Field Guide to the Birds. 290 pp. Houghton 
Mifflin Company. 
Smith, E. T. 1958. Chicagoland Birds—Where and When to Find Them. 
48 pp. Chicago Natural History Museum. 
Smith, H. R. and P. W. Parmalee. 1955. A Distributional Check List of the 
Birds of Illinois. 62 pp. Illinois State Museum, Popular Science Series, 
Volume IV and Illinois Audubon Society. 
