Agelaius May 2026

: Males are aggressively defensive, famously attacking much larger animals, including hawks, horses, and humans, if they approach the nesting site.

The genus includes several species of New World blackbirds, most notably the widespread Red-winged Blackbird ( Agelaius phoeniceus ). These birds are known for their rapid development and highly territorial breeding habits. Developmental Stages agelaius

: They undergo a "thermoregulatory metamorphosis" over approximately 12 days , transitioning from an ectothermic-like state to being able to maintain their own body heat. : Males are aggressively defensive, famously attacking much

: Young typically leave the nest 10–14 days after hatching. They are fed by parents for another 2–3 weeks before becoming independent. : Males are aggressively defensive