Quotes by James Mark Baldwin

"3. It has been found that young animals, birds, etc., depend upon the example and instruction of adults for the first performance of many actions that seem to be instinctive. This dependence may exist even in cases in which there is yet a congenital tendency to perform the action. Many birds, for example, have a general instinct to build a nest; but in many cases, if put in artificial circumstances, they build imperfect nests. Birds also have an instinct to make vocal calls; but if kept from birth out of hearing of the peculiar notes of their species, they come to make cries of a different sort, or learn to make the notes of some other species with which they are thrown. 4."