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Turkeys often enter our minds during Thanksgiving, but their reproductive biology is remarkable in its own right. Understanding a few key terms and traits will illuminate how these game birds manage their complex life cycle.
Male turkeys are called jakes as juveniles and toms when fully mature; females are hens. Physical cues distinguish them: toms are larger, with seasonal head colors ranging from white to blue and red against a black body, while hens are smaller, typically sporting blue‑gray heads and brownish bodies. These differences help observers avoid confusion, especially when the birds are similar in size.
Life expectancy varies by sex—toms typically live about four years and hens about three—though these figures rise when the birds enjoy an ideal brood range that supplies ample forage and cover. Healthy, well‑supported populations are essential for robust reproduction.
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During summer and winter, hens and poults (young turkeys) stay together, but late fall sees young jakes form separate flocks. As winter wanes, the groups reunite, and courtship commences. In the South, this begins in March; in northern areas, it starts in April or early May, coinciding with longer daylight and hormonal changes.
Courtship displays are theatrical: dominant toms drum, boom, and strut, fanning tails and dragging wings, while others rally behind a leader. Their heads shift through white, blue, and red hues—excited birds often appear entirely white. Hens signal readiness by crouching, and dominant toms typically mate with multiple females, storing semen that can fertilize up to 17 eggs in a clutch.
Remarkably, hens can reproduce via parthenogenesis—a form of asexual reproduction—under specific conditions such as food scarcity, temperature shifts, hormonal changes, or infection. While rare, this ability illustrates the species’ reproductive flexibility.
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After mating, hens seek nesting sites alone, creating shallow depressions in well‑covered ground. The polygamous toms continue to seek partners, leaving hens to manage the nest. Late spring is the typical laying period, timing varying with the start of mating. Hens lay one egg every 24–32 hours over two weeks, producing clutches that usually contain 10–12 eggs, though the number can vary.
Once the final egg is laid, incubation begins. Over the next 26–28 days, hens rotate the eggs hourly, feeding briefly between rotations but never straying far from the nest. All eggs hatch within about an hour of each other. During hatching, hens cluck softly, imprinting on the poults—a vital social learning process.
Newborn poults have open eyes and soft feathers. They can run within 12–24 hours and, by late summer, follow their mothers in open fields, feeding on insects and weed seeds.
