Mildred Dunnock of roles in Broadway productions during the 1930s, Dunnock won praise for her performance as a Welsh school teacher in "The Corn is Green" in 1940. The 1945 film version marked her screen debut. During the 1940s she performed mainly on stage, in such dramas as "Another Part of the Forest" (1946) and "Death of a Salesman" (1949) and in the musical "Lute Song" (1946). In 1947, Dunnock became a founding member of the Actors Studio. Dunnock reprised her "Salesman" role in the 1951 film version. She originated the role of Big Mama in the Tennessee Williams' "Cat on a
Bird colony (Enantiornithes), in sediments from the Late Cretaceous (Maastrichtian) of Romania. Approximately 13% of all bird species nest colonially. Nesting colonies are very common among seabirds on cliffs and islands. Nearly 95% of seabirds are colonial, leading to the usage, seabird colony, sometimes called a rookery. Many species of terns nest in colonies on the ground. Herons, egrets, storks, and other large waterfowl also nest communally in what are called heronries. Colony nesting may be an evolutionary response to a shortage of safe nesting sites and abundance or unpredictable food sources which are far away from the nest sites. Colony-nesting birds