Impact of Environmental Changes on Migratory Bird Survival

Table 2

Travelling time in days of spring migration as derived from Movebank data.

Tag number	Date when passing 18° North line	Date of arrival to breeding site	Location of breeding site	Number of days passed
14544D	27/03/1999	01/05/1999	52.1° North	35
40534B	23/03/2005	25/04/2005	52.1° North	33
	22/03/2006	21/04/2006	52.1° North	30
54988A	12/03/2011	05/04/2011	54.2° North	24
77195A	29/03/2010	01/05/2010	52.1° North	33
	18/02/2011	04/04/2011	52.1° North	45
91399A	18/02/2010	26/03/2010	54.2° North	36
93411A	05/03/2010	04/04/2010	51.8° North	30
	28/02/2011	04/04/2011	51.8° North	35
Average of travel time				33.44
Standard deviation				5.68