Oregon Coast Real Estate Knowledge Center: Coast Photo Gallery featuring Online Image Tours of Key Points of Interests found along the Oregon Coast.
Coast Photo Gallery - Oregon Coast Wildlife and Tide Pools
Oregon Coast Birding - Birds of Prey
Ospreys breed once a year on the Oregon Coast, starting their courtship and mating behaviors in April or May with the adult pairs usually returning every year to the same nesting site. During this mating period, the female stays in the nest site while the male takes responsibility for hunting and bringing the food back to the female and later on, to their chicks as well. Both adults work on repairing the nest site while the female normally prepares the inner lining of the nest. The female lays individual eggs spread out over several days with both adults incubating the eggs for about six weeks. The chicks hatch in the order as completed by the female creating a size differential between the newly hatched chicks. This breeding behavior commonly found in many raptor species is known as brood reduction, a way for the larger chicks to dominate the smaller and younger chicks, sometimes at their expense when food resources become scarce. This approach helps ensure a higher survival rate for the larger chicks remaining in the nest site.
Photo of an adult pair of ospreys resting in a tree near the South Beach State Park, one of the prime locations available to Wildlife Explorers and Oregon Coast Birders within the Central Oregon Coast where the nesting and chick rearing behaviors of ospreys can be observed in the wild at their nest site located in this Oregon State Park.
Photo of a pair of breeding ospreys gathered together on a tree limb found near the South Beach State Park where the female adult osprey is physically slightly larger than the male adult osprey and also possesses a slightly longer wing span than the male as well.
Photo of an osprey nest site built with a variety of sticks and other materials lining the inside of the nest, usually the same nest site utilized by the same breeding pair from year to year in addition to the adult pair breeding only once per year, usually during a time period from April to August with the female laying between one and seven eggs, with three eggs being the average amount of eggs laid per season.
Photo of an active osprey nesting site where both adults incubate the eggs for almost six weeks until each chick hatches within the order it was laid by the female creating a difference in size and competitiveness amongst the hatchlings, part of a breeding strategy known as brood reduction where the larger chicks compete for food and when food resources becomes scarcer, the larger chicks survive at the expense of the smaller chicks.


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