purple martin house at sunrise on montezuma national wildlife refuge on cayuga lake fingerlakes

purple martin house sunrise montezuma national wildlife refuge cayuga fingerlakes progne subis passeriformes hirundinidae bird avian ornithology largest swallows north migratory birds swallow nesting migratorybird insectivore morning marsh fields nature birdhouse large america lake purplemartin conservation ecology habitat breeding tourism hotspot birding migration architecture outdoor nys flx newyork upstateny destination copyspace textarea screensaver background