Cedar waxwings are monogamous within each breeding season. Males court females by doing a hopping dance and passing pieces of fruit, flower petals or insects to their potential mate. If the female is interested in the male, she reciprocates the hopping and passes the item back to the male. This sequence may be repeated many times. After pairs form, the female chooses the nest site. Pairs form beginning in spring, and the birds typically nest and breed from June through August. If the first breeding attempt is successful, the pair usually stays together for a second brood.
Mating System: monogamous
Cedar waxwings breed between June and August. A pair may raise one or two broods during a single breeding season. The female lays 2 to 5 eggs (usually 4 or 5), one per day in early morning. She incubates the eggs for 11 to 13 days (usually 12). The altricial chicks are blind, weak, and naked. They remain in the nest for 14 to 18 days (average 15 days) before venturing out on short flights near the nest. Parents continue to feed the young for 6 to 10 days after they fledge. As early as three or four days after leaving the nest, young waxwings may form flocks with other young from nearby nests. They mature in these flocks and may breed the next summer.
Breeding interval: Cedar waxwings raise one or two broods each year.
Breeding season: Breeding occurs in spring and early summer.
Range eggs per season: 2 to 5.
Average eggs per season: 4 or 5.
Range time to hatching: 11 to 13 days.
Range fledging age: 14 to 18 days.
Average fledging age: 15 days.
Range time to independence: 6 to 10 days.
Average age at sexual or reproductive maturity (female): 1 years.
Average age at sexual or reproductive maturity (male): 1 years.
Key Reproductive Features: seasonal breeding ; gonochoric/gonochoristic/dioecious (sexes separate); sperm-storing
Average eggs per season: 4.
Female cedar waxwings incubate the eggs and brood the chicks for the first 9 days after hatching. During incubation, the male brings food to the female. He also perches in a high exposed place to guard the nest and alert females to the presence of predators. The male and female provide food to the chicks during the hatchling stage and for up to 10 days after fledging. Both parents maintain sanitary conditions in the nest by removing fecal sacks of the chicks and either eating them or dropping them outside the nest.
Parental Investment: altricial ; pre-fertilization (Provisioning, Protecting: Female); pre-hatching/birth (Protecting: Male, Female); pre-weaning/fledging (Provisioning: Male, Female, Protecting: Male, Female); pre-independence (Provisioning: Male, Female, Protecting: Male, Female)