An excellent resource for identification, as well as communicating with other bird enthusiasts. Includes an excellent social element that allows users to pinpoint their exact location (if they are using a GPS enabled device), and share said location with the rest of the Audubon community. Some birds have more details than others- the most detailed provide pictures of the birds in all phases of life and both genders. It also has some bird calls labelled such as "alarm" (the sound the species of bird makes when it sees a predator near), "mating call" etc.
This is an incredible resource for Ornithology students and bird enthusiasts alike. Available as an app (labeled "Merlin Bird ID by Cornell Lab of Ornithology" which can be found in both Android and iOS platforms). This is a similar resource to the Audubon App- the usability is simply dependent upon the individual, and it is up to you to determine which interface works best for you.
A fairly self-explanatory app- if you see a plant that you think is interesting or are otherwise curious about, take a picture of it with your phone- this app aims to identify it for you. Available in both Android and iOS.
Lists of animal and plant life that can be found in a selected area, or if GPS is enabled, in the area where you are located at time of use. (One of my personal favorites, although it still needs a lot of work to accurately cover the entire spectrum of animal life including insects, etc.)
Author: Steven Earle
Physical Geology is a comprehensive introductory text on the physical aspects of geology, including rocks and minerals, plate tectonics, earthquakes, volcanoes, glaciation, groundwater, streams, coasts, mass wasting, climate change, planetary geology and much more. It has a strong emphasis on examples from western Canada, especially British Columbia, and also includes a chapter devoted to the geological history of western Canada. The book is a collaboration of faculty from Earth Science departments at Universities and Colleges across British Columbia and elsewhere.