MONTH 

 JUME I JULY I AUG. | SEPT. [ OCT. , NOV. 



LEACH'S 



STORM 



PETREL 



1.2 



> 



ARRIVAL 



< 



BROODING 



3,4,5 



> 



EGG LAYING 

 INCUBATION 



1,5,6 



FLEDGING 



< 



1,5 



REFERENCE: 



1 Palmer 1962 



2 Lesser (unpublished) 



3 Bent 1922 



4 Gross 1935 



5 Norton and Allen 1932 



6 Brewer 1877 



Figure 4. Estimated breeding chronology of Leach's storm-petrels nesting in Maine. 



39 



