May Ninth
A low, squeaking sound made with the lips is understood by some birds as a signal of distress. Orioles, wrens, catbirds, cuckoos, warblers, vireos, robins, and many other birds may be called close to one, particularly if the intruder is near their nest. You should learn this trick, for often it is possible to coax a shy bird from a thicket in order that it may be identified.