One of the delights of birding is that birds may be rare at home, but common in your journeys. Such is the case with Northern Mockingbirds. At the end of March, mockingbirds were singing in New York. Male and females sing. Males may sing 150 song types, and increase with age. They mimic each other, different species, and mechanical sounds (Farnsworth et al. 2011). As a youth in Washington DC, I heard mockingbirds mimic passing trains.