Accordng to the USA National Phenology Network "phenology refers to key seasonal changes in plants and animals from year to year—such as flowering, emergence of insects and migration of birds—especially their timing and relationship with weather and climate."
When naturalists in similar or same geographic areas witness the same or similar birds, insects and other natural phenomena during a particular season, I tend to think of this as phenology. Redundant as it may be, it is often serendipitous and amazing all the same.
|Short-eared Owl, Jefferson Co, WI. 19December2016|
Most commonly seen in Wisconsin during late fall and winter