Today a very, very large archive of Roger Tory Peterson
paintings, drawings and photographs are being dispersed by
his heirs. You'll recognize many of the paintings from
the field guide

http://acn.liveauctioneers.com/index.php/auctions/upcoming-auctions/7930-guernseys-to-auction-original-roger-tory-peterson-bird-paintings-sept-8

Apparently the family is split on the sale:

http://www.theday.com/article/20120906/NWS01/309069559/-1/NWS

Regards,
Jerry Householder
LaConner WA