In open parklands of the American West, brilliant blue-and-rust Western Bluebirds sit on low perches and swoop lightly to the ground to catch insects. Older birds may start nesting ahead of younger birds (especially first-time breeders.) Answer. (McLoughlin) Bluebirds breed in their second year, and are generally 10-11 months old (may be 1.13 years old) the first time they breed (if they can find a mate). Lots of monogamous bird species cheat, and some 'divorce'—but at rates much lower than humans. Also Read: Top 10 Fastest Birds In The World. It's a true statement, for the most part, but it's only part of the story. However, if one mate dies, the survivor will find a new mate. But DNA testing shows that the females are not always faithful to their chosen male partner. They will breed annually thereafter. Lots of bluebirds show up at my birdhouse around Jan to Feb. When they are not nesting, these birds roam the countryside in small flocks. 9 10 11. For some, having a mate for life means, marriage for 50 - 60 years, partner passes, and surviving mate lives with fond memories until death. Do Eastern bluebirds mate for life? It is thought that bald eagles mate for life. Bluebirds mate for life. DNA testing has confirmed that female bluebirds tend to multiply their mate. A discussion of whether birds mate for life has to begin by having an understanding of what we mean by the term "mating for life". A high percentage of Eastern Bluebirds in North America today nest in birdhouses put up especially for them along "bluebird trails." A research showed that 19 percent of bluebird chicks were not related to their supposedly fathers and 30 to 60 percent of individual nests contain babies from more than one male mate. Deep blue, rusty, and white, males are considerably brighter than the gray-brown, blue-tinged females. Although it is mostly "eastern" in our area, its total range extends south to Nicaragua. Bluebirds catch invertebrates mostly within 16 to 65 ft. Distances of up to 130 ft to spot and catch and invertebrate are rare. 9. Wiki User Answered . Bluebirds use a sit-and-wait strategy to locate ground-dwelling invertebrates. Top Answer. The males fight over who’s going to take up residence....sometimes the female joins in. Never to partner with another. We've all heard it countless times: Certain species of birds mate for life, including geese, swans, cranes, and eagles. Asked by Wiki User. 2009-04-26 11:45:45 2009-04-26 11:45:45. They perch on top of a pole, branch, or any other elevated structure to scan the surroundings. One of the animals that mate for life, the Bald Eagle is a prey bird found in North America. This is the most widespread of the three bluebirds. How do Eastern Bluebirds find their food? Bald Eagle. About 90 percent of bird species are monogamous, which means a male and a female form a pair bond. Studies have also found that male bluebirds may have more than one nest and one mate. It is one of the animals that mate for life.