“The Jays have found the Owls out, and they’re hopping mad,” said Jacob, who was standing in the shelter of a tree-trunk, enjoying the scene. “The Jays daren’t really touch the Owls, only jeer, and the Owls only snap their beaks and hiss in return because they don’t like to fly out in bright light; all you get back by the fence and watch out.” The children did as Jacob suggested and Tommy put his box on top of the wall and, at a signal from Gray Lady, unfastened the slats. At first the little Red Owl stretched his neck and snapped his beak; then, as he heard the voices of the Jays, he backed into the corner of the box and drew himself up thin and long, so that he did not look like the same bird that had been so plump and fluffy a few seconds before. “That’s just the way he did this morning when I found him in the pigeon-house,” said Tommy; “in the dark he didn’t look a bit like a bird, but more like a corn-cob on end. “There! look there, Gray Lady.” And Tommy pointed at a tree behind that in which the five Owls were roosting. “There is another Owl all by itself that the Jays haven’t found out, and it’s all drawn up thin just like my red one.” And, following the direction of his finger, the Owl was plainly to be seen, but so rigid and motionless that it might have been a moss-covered branch stump. “We would better go in now,” said Gray Lady, after they had watched for a few moments. “The Owls are beginning to notice us, and I do not wish them to be driven away until I have had a chance to photograph them. Leave the box there, Tommy; with all this noise your Owl cannot be expected to come out before night.” “But if they are good birds, what was the red one doing in Tommy’s pigeon-house?” asked Dave. “Probably looking for mice or other vermin, or perhaps shelter,” said Gray Lady, “for though they sometimes eat large game, mice or smaller animals are easier food for a tribe of Owls that sometimes grow only six inches high and never to a foot in length. I will tell you a way to convince yourselves and make sure of what Owls feed upon without killing the Owls,” said Gray Lady, as, on their way up to the play and work rooms, they went into the library to look at some of the mounted birds in one of the cases. “As Owls usually swallow their food whole, they take in bones, fur, feathers, etc., that they cannot digest; these portions are made up into little pellets called ‘Owl balls,’ and these are spit up before the real process of digestion is begun, and if you search under the trees where owls roost, you may often find these pellets for yourselves.”