I have used Bird Brain 3.1 on my Mac for several years and agree with
Grant Hendrickson (he probably recommended it to me), it is an excellent
data base. It does everything I want, produces great lists of just about
any imaginable category, has fine search functions, and can be used for
all North American birds or upgraded to include world birds (which I have
done) without any decrease in effectiveness. Published by Ideaform Inc
(515) 472-7256.

Roger Olstad
Seattle (Lake Forest Park)