How Close is Too Close?
Published on Audubon.org by Nicolas Lund, this is a must read .
Birdist Rule #28: Know When Birds Think You're Too Close to Their Nests
Observing bird behavior is one of the many pleasures of birding. Each species has its own quirks of feeding, flight, and social interaction, and seeing a bird engage in these natural behaviors gives the burgeoning birder a better understanding of the species beyond just field marks and identification points.
Of all the behaviors a bird engages in, however, new birders should take care to learn some sooner than others: namely, the variety of ways birds tell you that you’re too close to their nests.