A rule of thumb for Eastern Bluebirds is that eggs will hatch 17 days after the first egg is laid.Nestlings remain in the nest 17â21 days before they fledge.Remove bluebird nests and those of other birds as soon as the young birds have fledged.
Another common standard classical quartet is the piano quartet, consisting of violin, viola, cello, and piano. Romantic composers Beethoven, Brahms, and Mendelssohn each wrote three important compositions in this form, and Mozart, DvoÅÃ¡k, and Gabriel FaurÃ© each wrote two.
The string quintet is a common type of group. It is similar to the string quartet, but with an additional viola, cello, or more rarely, the addition of a double bass.Terms such as  piano quintet  or clarinet quintet frequently refer to a string quartet plus a fifth instrument.ne type of jazz trio is formed with a piano player, a bass player and a drummer. Another type of jazz trio that became popular in the 1950s and 1960s is the organ trio, which is composed of a Hammond organ player, a drummer, and a third instrumentalist (either a saxophone player or an electric jazz guitarist).