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In this activity, learners build a bird feeder or feeders to attract birds for observation.

In this experiment, learners examine the way oil affects bird feathers and test different cleanup methods to find out which works best.

This activity (on page 3 of the PDF under GPS: Cactus Activity) is a full inquiry investigation into how some desert birds keep their cool.

In this activity, learners build a cuica or chirping bird using straw, string, and a bottle cap. Use this activity to explore the interplay of motion and sound.