A spongy moth caterpillar. (Feliciano Moya Lopez / Pixabay)

Several sites in northeastern Illinois — including Waterfall Glen, Des Plaines Riverway, Hidden Lake and Wood Ridge forest preserves — will be sprayed with fake pheromones to confuse spongy moth males and disrupt mating.

Well-meaning good Samaritans often mistake baby animals left alone as being abandoned. (James D Long / Pixabay)

Learn when to step in, when to back off

Just because a baby animal is spotted on its own doesn’t mean it’s been abandoned or orphaned. Before “rescuing” the critter, call the experts.