راهنمای پرندگان آلاسکا، ویرایش ششم

GUIDE TO THE BIRDS OF ALASKA has been a must-have for Alaska birders for more than thirty years. In the sixth edition, Robert Armstrong provides hundreds of new photographs. Every bird is now illustrated including the casuals and accidentals. This comprehensive guide provides the most current knowledge about the birds in Alaska. "Guide to the birds of Alaska has been a must-have for Alaska birders for more than thirty years. In the new sixth edition, Armstrong provides completely updated text and hundreds of new photographs. Every bird is now illustrated including the casuals and accidentals. This comprehensive guide provides the most current knowledge about the birds in Alaska"-- Publisher