Cj. Henny et al., RECENT DISTRIBUTION AND STATUS OF NESTING BALD EAGLES IN BAJA-CALIFORNIA, MEXICO, The Journal of raptor research, 27(4), 1993, pp. 203-209
We studied Bald Eagles (Haliaeetus leucocephalus) nesting in Baja Cali
fornia, Mexico, and vicinity from 1983-1993. The range of nesting Bald
Eagles in Baja California has been reduced from a scattering of pairs
along both the Pacific and Gulf sides to a remnant population in Magd
alena Bay where no more than three pairs were found annually. Low numb
ers and a restricted distribution make this disjunct population especi
ally vulnerable to human disturbance. Additional protection of present
nesting localities and a reintroduction program on remote islands in
the Gulf of California, where eagles historically nested, are proposed
. Limited data on nesting success indicate that the Magdalena Bay popu
lation is reproducing successfully with young probably dispersing nort
h following fledging. The Bald Eagles found wintering along the Colora
do River Delta in January apparently nest farther north in the United
States or Canada.