Both Bay-breasted and Cape May are regular migrants in Central Park 
(despite Canadian breeding grounds).  Cape May routinely appear singing 
from tops of young Central Park trees; Bay-breasted glean sluggisly from 
canopy right down to the paths of Central Park's Rambles as their cousin 
Blackpolls pulse from the tops of the trees above.  Both are highest-point-
in-urban-green-migrant-bottleneck species.