A barnyard birthday tale tells of the cow's party. Bluejay issued the invitations to the party. But he didn't tell horse, pig, goat, lamb, mouse, duck and hen that only grass would be served. Bluejay secretly thought all the guests would leave after the games. But he was wrong, for far into the night lamb and goat and horse munched grass in the pasture with cow. Pastoral sketches in pastel colors celebrate the cow's happy birthday party. Because birthday parties are such events to children we think they will take to this whimsical treatment which combines two familiar and cherished phenomena -- birthdays and animals. It is also a good complement to farm study in primary grade.