A person whose appearance matches these characteristics is said to be a Caucasian. Caucasians don't always have white skin but in the United States caucasian is commonly used to mean white people. Caucasians are found in many countries around the world. So while a Caucasian person in the United States may share certain racial characteristics with a Caucasian person from France, the two people have different ethnic backgrounds â one American, the other French.
Make sure you know when the baby birds are due to fledged. This occurs at different times depending on the species; for example, bluebirds fledged at days 16-21, tree swallows at days 18-17 and purple martins at around 20 days. Open nesters generally fledged around day 12, while cavity nesters stay longer.
The female lays 3-5, slightly glossy, pale bluish-white to white eggs (see Harrison [1979] for a photo of markings). The incubation period is 12-13 days and nestlings fledge 9-12 days after hatching and feed themselves 2 weeks after leaving the nest. Two successful clutches may be raised in one season.Rates of parasitism by Brown-headed Cowbirds (Molothrus ater) vary widely (Harrison 1979, Nolan et al.2002).he incubation period is 12-13 days and nestlings fledge 9-12 days after hatching and feed themselves 2 weeks after leaving the nest. Two successful clutches may be raised in one season. Rates of parasitism by Brown-headed Cowbirds (Molothrus ater) vary widely (Harrison 1979, Nolan et al. 2002).