how smart are the birds?
A 2009 study showed that the bird was able to recognize individual humans, particularly noting those who had previously been intruders or threats.
Northern mockingbird
A 2009 study showed that the bird was able to recognize individual humans, particularly noting those who had previously been intruders or threats. 
how long do mocking birds stay in the nest 11 to 13 days why are they called mocking birds? It has mimicking ability. where are they found? North America what colours are their feathers? Gray to brown upper feathers what do they eat? Arthropods, earthworms, berries, fruits, seeds, and occasionally lizards. how do they select their mates? Males sing songs to attract females. do they follow any specific breeding patterns? Yes, the males arrive before the beginning of the season to establish their territories and use a series of courtship displays to attract the females to their sites. do the parents take special care of the hatchlings? Yes, as they are born relatively immobile and defenseless and therefore require nourishment for a certain duration. who are their predators? The great horned owl, screech owl and sharp-shinned hawk. do they face any other threat? Winter storms limit the expansion of mockingbirds in their range.
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Northern mockingbird [SEP] Introduction
A 2009 study showed that the bird was able to recognize individual humans, particularly noting those who had previously been intruders or threats. Also birds recognize their breeding spots and return to areas in which they had greatest success in previous years. Urban birds are more likely to demonstrate this behavior.