>>24978575Females come into estrus several times during the year.
Observations of females in zoological parks indicate that killer whales undergo periods of multiple estrous cycling (polyestrus), interspersed with periods of noncycling. On average, females may have four estrous cycles during one polyestrus period. This period is highly variable, as is the period of noncycling, both for one whale over time, and between whales.
Killer whales are polygamous: they mate with several partners.
https://seaworld.org/animals/all-about/killer-whale/reproduction/You mean this source or this one?
https://files.catbox.moe/yude4w.webm 