So, if you see these little visitors in your garden (and want to help them), you can build a hummingbird nest box to attract ...

Allen's hummingbirds build tiny nests out of soft plant materials. After a few weeks, the eggs hatch and the chicks emerge.

Researchers were, therefore, shocked to discover dozens of hummingbirds nesting together in a “hive” in an Ecuadorian cave. What explains the sudden change in behavior? Cañas-Valle and Juan ...