Table 39. Reference codes for nesting chronology data 



Code Reference 



1 Bent 1963a, b 



2 Erwin (unpubl observ.) 



3 Maryland Birdlife notes 



4 Kirkwood 1895 



5 Stewart and Robbins 1958 



6 MacKenzie 1961 



7 Bailey 1913 



8 Stone 1937 



9 Shriner 1896 



10 Leek 1975 



11 Griscom 1923 



12 Bull 1964 



13 Howe and Sturtevant 1899 



14 Samuels 1895 



15 Forbush 1929 



16 Howe and Allen 1901 



17 Knight 1908 



18 Ferren (in prep. ) 



19 Bull 1974 



20 Hill 1965 



21 Allen 1903 



22 Palmer 1949 



23 Pennock 1908 



24 Manomet Bird Observatory records 



25 Smith-Kenneally (pers. comm. ) 



26 Byrd (pers. comm. ) 



27 Sage et al . 1913 



28 Griscom and Folger 1948 



29 Patuxent Wading Bird Survey, 1975 



(U.S. Fish and Wildlife Service) 



30 Kaine Field Naturalist, 1965-1971 



31 Kurray 1952 



32 Weske (pers. comm.) 



33 1976-1977 Colonial Sea and Wading 



Bird Survey (U.S. Fish and Wild- 

 life Service) 



84 



