"For a long time, scientists thought that female birds didn't sing... they would label the behavior aberrant, caused by a hormone imbalance or some other anomaly."
"Recent work suggests that female song was the norm for the ancestors of modern songbirds. And many female birds still sing today: It is estimated that female song occurs in about two-thirds of all songbird species."
"Despite the increased documentation of female birdsong in recent years, questions remain about its function... why do females sing?"
"Females do not appear to use song for mate attraction very much. Rather, Barros and Benedict found the highest support for territorial defense (67% of the studies analyzed)..."
[
Collection
]
[
|
...
]