The following links provide content and examples related to field photography. I have put the material into a Google Photos format. Be sure to select the “i” icon when viewing the images since there is usually quite a bit of text there explaining the rationale for showing the slide.
Again, the material here does not pretend to be a complete self-contained nature photography course. The material presented in the links below should be used as a supplement to more conventional material on cameras, their operation, and basic photography techniques.
In case you think your cell phone is adequate for photography, it can be very useful, but see a dissenting opinion here. We like his statement that the more equipment you have the less creative you are.