Go birding on the beach - beaches attract people and birds for different reasons. People are there for sun and fun, birds for food and rest. Look carefully to see how they differ from forest birds and those that swim. Wait a while to see what they seek as food. Wading birds have long legs and big feet to help them stand still.
Shoreline birds have short and sturdy legs.
Listen to insect songs - on hot summer days or evenings, insect 'songs' are often heard. Approach a 'songster' with care. At night, don't use a flashlight until the sound is very close. Males 'sing' in the evening - females are wingless and silent. Measure a storm - the next time you see lightening and then hear thunder, you can figure out how far away the flash is.