: Born altricial (naked and helpless), they possess one of the fastest avian growth rates , increasing their body mass by 9–10 times within the first few days.

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

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

: A single male often defends a territory containing a "harem" of up to 15 nesting females .

Agelaius 📢

: Born altricial (naked and helpless), they possess one of the fastest avian growth rates , increasing their body mass by 9–10 times within the first few days.

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

: Young typically leave the nest 10–14 days after hatching. They are fed by parents for another 2–3 weeks before becoming independent. : Born altricial (naked and helpless), they possess

: A single male often defends a territory containing a "harem" of up to 15 nesting females . : Born altricial (naked and helpless)