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The American Ornithologists' Union
<br />ROBERT W. BUTLER 15
<br />Table 1. Length (mm) of exposed culmen and tarsus, and body mass (kg) of Great Blue
<br />Herons. Standard deviation and sample size appears in parantheses. Data from British
<br />Columbia: Simpson (1984); Nova Scotia and eastern North America: Quinney & Smith (1979);
<br />Oregon: Bayer (1981c).
<br />LOCATION
<br />EXPOSED CL/LMEN TARSUS BODY MASS
<br />British Columbia
<br />Adult Male
<br />Adult Female
<br />137.0 (4.4, 24)
<br />123.9 (4.7, 29)
<br />165.9 (6.7, 24)
<br />152.0 (7.0, 29)
<br />2.48 (0.29, 24)
<br />2.11 (0.34, 29)
<br />Nova Scotia
<br />Adult Male
<br />Adult Female
<br />141.2 (8.6, 9)
<br />136.5 (5.3, 13)
<br />178.7 (11.6, 16)
<br />170.8 (12.2, 15)
<br />No data
<br />No data
<br />Eastern Canada & U.S. No data
<br />Adult Males and Females
<br />No data 2.23 (0.76, 37)
<br />Oregon
<br />Adult
<br />Juvenile (July)
<br />Juvenile (Aug -Dec)
<br />Yearling (Jun -Jan)
<br />No data
<br />No data
<br />No data
<br />No data
<br />No data
<br />No data
<br />No data
<br />No data
<br />2.09 (0, 1)
<br />1.76 (0.29, 4)
<br />1.98 (0.50, 4)
<br />2.22 (0.40, 3)
<br />REFERENCES
<br />American Birds. 1991.90th Christmas Bird Count. Am.
<br />Birds 44: 547 -1042.
<br />American Ornithologists' Union. 1983. Check -list of
<br />North American birds, 6th ed. Amer. Ornithol.
<br />Union, Washington, D.C.
<br />Anderson, D. W. and J. J. Hickey. 1972. Eggshell changes
<br />in certain North American birds, pp. 514 -540 in
<br />Proc. XV Int. Ornithol. Congr., E. J. Brill, Leiden.
<br />Anderson, J. M. 1978. Protection and management of
<br />wading birds, pp. 99 -104 in Wading birds (A. Sprunt
<br />IV, J. C. Ogden, and S. Winkler, Eds.). Natl.
<br />Audubon Soc. Res. Rep. No. 7, New York.
<br />Andrle, R. F. (Ed.) 1988. The atlas of breeding birds in
<br />New York State. Cornell Univ. Press, Ithaca, New
<br />York.
<br />Bayer, R. D. 1978. Aspects of an Oregon estuarine Great
<br />Blue Heron population, pp. 213 -218 in Wading
<br />birds (A. Sprunt IV, J. C. Ogden, and S. Winkler,
<br />Eds.). Natl. Audubon Soc. Res. Rep. No. 7, New
<br />York.
<br />Bayer, R. D. 1979. Bald Eagle -Great Blue Heron
<br />interactions. Murrelet 60: 31 -33.
<br />Bayer, R. D. 1980. Social differences in defecation of
<br />Great Blue Herons (Ardea herodias). Auk 97: 900-
<br />901.
<br />Bayer, R. D. 1981a. Great Blue Herons "mousing" in
<br />western Oregon. Murrelet 62: 91.
<br />Bayer, R. D. 1981b. Regional variation of Great Blue
<br />Heron longevity. J. Field Ornithol. 52: 210 -213.
<br />Bayer, R. D. 1981c. Weights of Great Blue Herons at the
<br />Yaquina estuary, Oregon. Murrelet 62: 18-19.
<br />Bayer, R. D. 1982. Great Blue Heron eggshell thickness
<br />at Oregon estuaries. Wilson Bull. 94: 198 -201.
<br />Bayer, R. 1984a. Vocalizations of Great Blue Herons at
<br />Yaquina Estuary, Oregon. Colonial Waterbirds 7:
<br />35-44.
<br />Bayer, R. 1984b. Foraging ground displays of Great
<br />Blue Herons at Yaquina Estuary, Oregon. Colonial
<br />Waterbirds 7: 45-54.
<br />Bayer, R. D. 1985. Bill length of herons and egrets as an
<br />estimator of prey size. Colonial Waterbirds 8:104-
<br />109.
<br />Bayer, R. D. 1985a. Shiner perch and Pacific Staghorn
<br />sculpins in Yaquina Estaury, Oregon. Northwest
<br />Sci. 59: 230 -240.
<br />Bayer, R. D. 1985b. Interactions between Great Blue
<br />Herons and gulls. Wilson Bull. 97: 538 -541.
<br />Bayer, R. D. and E. McMahon. 1981. Colony sizes and
<br />hatching synchrony of Great Blue Herons in coastal
<br />Oregon. Murrelet 62: 73-79.
<br />Becker, J. J. 1982. Birds of the Pleistocene American
<br />Falls Local Fauna, Idaho. Condor 84: 449.
<br />Becker, J. J. 1984. Additions to the late Pleistocene
<br />avifauna of Bradenton, Manatee Couty, Florida.
<br />Florida Scientists. 47: 203.
<br />Becker, J. J. 1985a. A late Pleistocene (Wisconinan)
<br />avifauna from West Palm Beach, Florida. Bull. Brit.
<br />Orn. Club. 105: 38.
<br />Becker, J. J. 1985b. Fossil Herons (Ayes: Ardeidae) of
<br />the late Miocene and early Pliocene of Florida. J.
<br />Vert. Paleontol. 5: 25.
<br />Becker, J. J. 1986. An early heron (Ayes, Ardeidae,
<br />Ardea) from the middle Miocene of Nebraska. J.
<br />Paleontol. 60: 968.
<br />Behle, W. H. 1958. The bird life of Great Salt Lake. Univ.
<br />Utah Press, Salt Lake City.
<br />The Academy of Natural Sciences of Philadelphia
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