Longevity 
There are no quantitative data on life expectancy or 
survival rates for any bluebird population in Illinois. Bartel 
(1950) recovered a banded female at least 5 years old. 
Mortality factors other than nest mortality and severe 
weather, as already discussed, are also unrecorded. 
MOUNTAIN BLUEBIRD (Sialia currucoides) 
There is no valid record for the mountain bluebird in 
Illinois (Cory 1909). Princen’s (1970) report is based on an 
inadequate observation, and is unacceptable. 
TOWNSEND'S SOLITAIRE (Myadestes townsendi) 
There are six records of Townsend’s solitaire for Illi- 
nois. The species is represented by one specimen taken by 
Charles Douglas at Waukegan, Illinois, December 16, 
1875 (Ford 1956). All occurrences were in the northern 
part of the state. 
Single solitaires have been observed to winter at Mor- 
ton Arboretum on three occasions, being present from De- 
fembers 27, 1953 to March 28, 1934 (Bartel 1954); from 
November 23, 1958 through February 1959 (Mumford 
1959); and after the Christmas count period of 1959-1960 
(Mumford 1960). 
The bird collected in 1875 was found feeding on haw- 
thorn fruit (Crataegus tomentosa) in a sheltered ravine. In 
1954 in Morton Arboretum the solitaire found food in an 
area of crab apple and hawthorn plantings. 
The latest record, in the spring, was a bird seen about fi 
miles south of Rock Falls on April 6, 1969 by Max and 
Ann Hagans (Shaw 1969; and Hagans, personal note). 
LITERATURE CITED 
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ArmsTrRONG, E. E. 
460. 
ARMSTRONG, J. 
SSE 
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Batey, A. M. 1932. A starling roost in the Chicago area. Wilson Bulle- 
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Baba, R. P. 1963. Breeding populations of birds of the upland forest and 
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Ba.Lou, W. H. 1880. Theory of bird migrations. American Naturalist 
14(2):527. 
BarkER, R. J. 1958. Notes on some ecological effects of DDT sprayed on 
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Barnes, R. M. 1890. List of birds breeding in Marshall Co., [linois. 
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_____, 1912. Breeding birds of Marshall Co., 
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BarTEL, K. E. 1932. A rare specimen. Oologist 49(8):91. 
1935. (Note). Inland Bird Banding News 7(3):7. 
. 1935a. Six year migration summary. Oologist 52(1):11. 
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1970. Field notes/the varied thrush. Audubon Bulletin 
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42 
1952. Summer banding. Inland Bird Banding News | 
Dope: 
| 
1954. Townsend’s solitaire in northern Illinois. Audie 
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1960. Let us (s)pray some more. Inland Bird Banding 
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1962. Wildlife back to normal again. Audubon Bulleti 
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_ 1965. After pesticides are used, how many years befor 
populations are back to normal. Inland Bird Banding News 
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_ 1968. A comparison of return “age” versus recovery 
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their allies. U.S. National Museum Bulletin 196:1-454. 
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__,and W. Harpy. 1950. Fourteenth breeding-bird: 
Swamp and thicket. Audubon Field Notes 4(6):303. 
Buck, C. F. 1936. Intemperate robins. Nature Notes 1(6):129-13( 
ButLer, A. W. 1896. Additional notes on Indiana birds. Indiana 
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migration in Lincoln Park, Chicago. Chicago Academy of 
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” 1885. Bird migration in the Mississippi Valley. Wi 
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_ 1888. Report on bird migration in the Mississippi 
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