This male yellow warbler is feeding his mate as she incubates their eggs. This warbler’s song goes, "Sweet, sweet, I’m so sweet"— and that they are. But the tenderhearted among us forget that what he’s sweetly offering her are the bodies of slain insects. Photo by Anthony Mercieca/Root Resources.

The eastern milk snake is happy to eat baby warblers, if it can find them. Like many predators, it will eat the commonest small animals it can find. Preying upon the commonest is part of what keeps the diversity in biodiversity. Photo by Mike Redmer.