|Baby, I've got some prime lakefront property.|
Photo by NDomer73
The males sometimes get so riled up about their property rights that they initially run off the newly-arriving females. But the females are persistent, and will lurk around the property until he comes to his senses.
For many years it was known that male red-winged blackbirds are monogamous if there are enough of them to go around, but polygamous if there are fewer males than females. Then DNA testing revealed that many of the females do a little trysting on the sly--the young in a nest can have different daddies. Oh, those sneaky backdoor lovers!
Have you seen any red-winged blackbirds yet? (If so, where do you live?)