שאלה | In the course of an experiment, Todt and Hultch manipulated the nightingale songs by repeating or removing some of the parts. They then played the resulting songs to the nightingales. How did the birds react to these songs?

In the course of an experiment, Todt and Hultch manipulated the nightingale songs by repeating or removing some of the parts. They then played the resulting songs to the nightingales. How did the birds react to these songs?

		the birds did not learn these songs
		the birds learned all these songs, but repaired the incorrect parts
		the birds learned these songs exactly as they were played by the experimenters
		the birds rejected (did not learn) some of the songs, they did acquired other songs but corrected the wrong parts