Birds in New York State Have Altered Their Migration Timing and Are Experiencing Different Thermal Regimes While Breeding or on Stopover from 2010 to 2015

Table 4

Migration timing changes and significant environmental temperature changes experienced by species showing a two-stopover migration strategy through Essex and Franklin counties in the Adirondack region. Migration patterns were determined using data from the Cornell lab of ornithology and Zuckerberg et al. [23].

Correlation	Species common name	value	Pattern	Type of bird	Migration pattern
Year versus spring arrival date	Tennessee Warbler	0.001	Earlier	Passerine	Long distance
Spring arrival date versus temperature on day of spring arrival	Common Nighthawk	0.002	Colder	Nightjar	Long distance
Number of days in Essex and Franklin counties during spring versus maximum temperature for spring time in Essex and Franklin Counties	Horned Lark	0.003	Warmer	Passerine	Short distance
	Northern Shrike	0.003	Warmer	Passerine	Long distance
Number of days in Essex and Franklin counties during spring migration versus minimum temperature for time in Essex and Franklin counties during spring migration	Bufflehead	0.002	Colder	Waterfowl	Medium distance
	Northern Pintail	0.002	Colder	Waterfowl	Short distance
Spring departure date versus mean temperature for time in Essex and Franklin counties	Northern Shrike	0.003	Colder	Passerine	Long distance
Fall arrival date versus temperature on day of fall arrival	Bay-Breasted Warbler	0.001	Colder	Passerine	Long distance
Fall departure date versus temperature on day of fall departure	Cape May Warbler	0.002	Colder	Passerine	Long distance
	Greater Yellowlegs	0.001	Colder	Shorebird	Long distance
Number of days in Essex and Franklin counties during fall migration versus maximum temperature for time in Essex and Franklin counties	Horned Lark	<0.001	Warmer	Passerine	Short distance
Year versus number of days in spring stopover	Lesser Scaup	0.001	More days	Waterfowl	Long distance
Year versus number of days in fall stopover	Solitary Sandpiper	0.003	More days	Shorebird	Long distance
Year versus total number of days in Essex and Franklin counties	Horned Grebe	0.002	More days	Waterfowl	Long distance