The best seasons to watch birds are in the spring and fall as they migrate from north to south in many areas. I usually go out with my binoculars and a field guidebook in the mornings because most birds are very active and feed at that time. You also have to know where to look to see them and how to recognize their bird calls. Because I'm new to birding, I consult my bird guidebook to look up specific varieties of birds. You have to look carefully at their plumage (feathers), the way they behave and move, and their size to recognize many birds because some look very similar.
Also, take note of the time of year you see birds because this information might tell you more about their breeding range and migration routes. Besides looking at birds, I like the activity because it gives me a chance to exercise as I hike to different locations, and it allows me to relax my mind in the great outdoors.