Eastern Kingbird These are some facts about the Eastern Kingbird. This species is the only widespread kingbird in the east. Common and conspicuous in summer, it is often seen perched jauntily on a treetop or fence wire, or sallying out with shallow fluttering wingbeats to catch an insect in mid-air. A group of kingbirds is collectively referred to as a coronation, a court, or (my favorite), a tyranny of kingbirds. I report on the lifetime reproductive success (LRS) of female Eastern Kingbirds (Tyrannus tyrannus) in central New York. Tyrannus tyrannus . The Eastern Kingbird (Tyrannus tyrannus) is the most common kingbird in North America. The northern mockingbird is a medium-sized mimid that has long legs and tail. Other Image Source: Image Source: Its upper parts are colored gray, while its underparts have a white or whitish-gray color. Eastern Kingbird. Male lifespan increased with mean daily precipitation and bird density, but only pair density had a positive effect on female lifespan. Males and females look alike. Maximum longevity: 11.1 years (wild) Observations: Capable of breeding in the first year. It has parallel wing bars on the half of the wings connected near the white patch giving it a distinctive appearance in flight. I investigated the major correlates of LRS and specifi cally tested the hypothesis that small body size yields reproductive benefi ts. Eastern Kingbird; Tyrannus tyrannus. The record lifespan in captivity for an eastern kingbird is seven years, however, we know from banding them that this is much higher than the norm of two to three years. The species’ physical attributes, habitat preferences, breeding behaviors and migratory/survival skills all contribute to its prominence and abundance. However, variance partitioning indicated that most variation in LRS was attributable to the effects of lifespan and P, but that a substantial negative covariance existed between lifespan and P. The latter result was consistent with experimental evidence of a cost of reproduction in Eastern Kingbirds. PDF | I report on the lifetime reproductive success (LRS) of female Eastern Kingbirds (Tyrannus tyrannus) in central New York.

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