Page:American Journal of Psychology Volume 21.djvu/71

Fig. 20

The two Young Crows as they were usually fed. Such tameness was to be had as they grew older only with the most constant feeding and by the one person who cared for them.

fact that a turtle had been eating from the pan which contained the bird food, and in fact opened the door a few times by crawling up between the strings and the wire.

The Young Crow 1 worked at the box a great deal. He seemed to enjoy pulling and tugging at the rubber band which

Fig. 21

The strings were now in Place 4 on left end. Young Crow 1 is shown here as he happened to find a way to open the door which I had not foreseen. He pushed his beak through the wire and pulled the strings as they run from the latch to Place 4. See the text (p. 63) for the effect of this on the Old Crow.