Meanwhile, the robins back on territory are happily hunting worms. Imagine eating a slurpy, muddy worm. Robins don't just imagine this, they DO it, dozens of times every day in spring and summer. Robins eat a host of other small creatures, from spiders to snakes, but are especially well-adapted for eating worms. Link to First Earthworms Sighted Now that the worms and robins are back, we've got worm facts and fun in this week's report.
Robins spend much of their lives searching for one of their favorite foods, earthworms.
An ornithologist named Frank Heppner wanted to know, so he set up some experiments. Dr. Heppner needed to investigate all the robins' senses. A list of the equipment he used is provided below. Like these observers, everyone who wonders which senses robins use in their search for earthworms will enjoy digging into this week's first Challenge Question. During the time that glaciers covered much of North America, earthworms disappeared from the frozen soil.