Rob is 'spot on' about the Howell books and the Roberts plant guide. When
I was in Baja a lot in the early 1990s (as far south as Bahia Concepcion)
I did just fine using only the National Geographic field guide edition of
that time.

The Baja Explorer Topographic Atlas and Directory (a DeLorme-style atlas,
but more detailed) was essential for travel off the main roads. But it may
be out of print by now.

Sanford Wilbur's "Birds of Baja California (University of California
Press, 1987) has pretty good distribution summaries and introductory
information on habitats, climate, etc. Unfortunately, the book's
typography is utterly ugly, making is difficult to read - plus it's not a
field guide.

In 1995 I prepared a field check list of Central Baja California birds for
the Museo de Naturaleza y Cultura in Bahia de Los Angeles; it has
seasonality and abundance codes, and some locality codes. It's available
from me as an Adobe Acrobat .pdf file.

Doug

*****************************
Douglas Canning
Olympia, Washington
dcanning at zhonka.net
*****************************