Shearwaters, Storm-petrels & Bulwer's Petrel, Pterodroma Petrels and Albatrosses & Fulmarine Petrels on PDF Pen Drive.
 
All 4 guides in pdf format on one pen drive (pdfs encrypted). Highly praised by leading seabird experts. Pen drive partitioned, leaving over 6GB of accessible memory for additional seabird e-documents. Take on your travels over 1,200 pages of cutting-edge knowledge about North Atlantic tubenoses in a compact and lightweight pen drive. Enlarge high resolution photographs and illustrations to explore the details of structure and plumage for ID purposes; or simply to enjoy the beauty of the albatrosses, petrels, shearwaters and storm-petrels on high resolution screens. The 4 guides cover one-third of the tubenoses of the world.