VOA慢速英语:'A White Heron,' by Sarah Orne Jewett

whistle - n. a high and loud sound made by forcing air through your lips or teeth

preserve - v. to keep (something) in its original state or in good condition

heron - n. a large bird that has long legs and a long neck and bill

nest - n. the place where a bird lays its eggs and takes care of its young

handsome - having a pleasing appearance that causes romantic feelings in someone