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The adulthood age for mallards is fourteen months, and the average life expectancy is three years, but they can live to twenty. [37] Several species of duck have brown-plumaged females that can be confused with the female mallard. [38]
Male and female yellow-billed ducks have a statistically significant difference in life spans. Male ducks live for 4 years and 4 months on average while female ducks only live for just over 3 years. As such the difference in survival rate is statistically significant as well. 79% of males survive any given year while only 72% of females do.
An 8 week old Khaki Campbell (rear) and a 13-week-old Mallard. Mrs Adele Campbell [12] commenced poultry-keeping around 1887 and later purchased an Indian Runner Duck of indiscriminate type which was an exceptional layer (182 eggs in 196 days), [13] [14] and which formed the basis in developing the "Campbell Ducks"; in her own words "Various matings of Rouen, Indian Runner and Wild Duck were ...
Domestic ducks are mostly promiscuous, where wild mallards are monogamous. Domestic ducks have lost the mallard's territorial behaviour, and are less aggressive than mallards. [7] [8] Despite these differences, domestic ducks frequently mate with wild mallard, producing fully fertile hybrid offspring. [9]
American Pekin flock. The Pekin or White Pekin is an American breed of domestic duck, raised primarily for meat. [6] [7] It derives from birds brought to the United States from China in the nineteenth century, [8] and is now bred in many parts of the world. [6]
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Possible backcross between a Mallard and American black duck All the species within the mallard complex are known to hybridize with other members within overlapping ranges. Mallards, both domestic and wild in particular are notorious hybridizers, know to frequently hybridize within the mallard complex and even outside of Anas.
Overall life expectancy: 76.4. Women: 79.3. Men: 73.5. On average in 2021, life expectancy for men fell quicker than women, widening a gap that had been growing over the past decade.