Because pigeons are highly social descendants of rock doves, they often view familiar companions as flock mates; when the bird perceives the pregnant cat’s sedentary “nesting” behavior and low energy, it triggers a biological drive to help secure the site.
Since pigeons are famously minimalist builders, they may begin depositing individual twigs and straw directly against the cat’s fur, effectively treating the feline as the foundation of the nest.
This peaceful cohabitation is further enabled by the cat’s elevated levels of oxytocin during pregnancy, which can suppress its natural predatory instincts and allow it to tolerate the bird’s eccentric attempts to
“parent” the upcoming litter.
