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.
A string quartet is made up of four musicians playing two violins, a viola, and a cello. These are all string instruments played either by plucking the strings or using a bow. The violins are the smallest and typically play the higher notes. The viola and cello are larger instruments and play the lower notes.