Central-place foraging poses variable constraints year-round in a neotropical migrant

Table 1 Foraging range area (± SD) and maximum foraging range by region for purple martins

	Region	N	Foraging area (km²)			Maximum foraging distance (km)
	Region	N	Mean	Min.	Max.	Mean	Min.	Max.
Breeding	Quebec	17	7.19 ± 14.6	0.44	63.1	2.68 ± 3.04	0.66	14.0
	Texas	2	11.1 ± 9.05	4.73	17.5	4.18 ± 2.94	2.10	6.26
	Florida	73	15.7 ± 43.3	0.33	362	2.97 ± 2.05	0.51	10.7
Non-breeding	Amazon	6	9980 ± 9970	669	26,400	78.0 ± 39.9	30.3	148
	Dry diagonal	5	7470 ± 6130	209	14,900	77.7 ± 39.9	11.9	117

For breeding birds, N is the number of individuals, while N is the number of roosts for non-breeding birds

ISSN: 2051-3933