Face it. Half the time ... most of the time, really ... you use your Peterson (or some other favorite "field guide") as a checklist. You see a bird and you pretty much know in your head what it is, but you need to look it up to see what the three or four similar ducks or woodpeckers or whatever are in your area in order to be sure that it is a Common Merganser or a Red Headed Woodpecker or whatever. All you need is a basic picture (drawing preferred for this sort of thing) the names of the birds and basic range maps.
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