I’m curious if there is a pattern flight height for migratory birds. Our project is close to a large road network, with a lot of green area and along a flight corridor, landing, resting, feeding and reproduction Brazil native birds.  A post-construction analysis would help to determine which species are most affected by this type of building. I am wondering if anyone has experienced any trends in bird collisions or interference in the migratory route medium and low-rise buildings.