Table 1. Summary of birds (sex and weight), PTT devices (weight and date of equipment) and transmission characteristics (date of first and last position, number of locations, percentage of discarded positions, number of active duty cycles and mean (range) number of locations per duty cycle).

Shearwaters Status	Sex	WB (g)	PTT Number	WD (g)	Date ofequipment	Date of first position	Date of lastposition	# LOC	LOC over CONT (%)	DISC LOC (%)	# DC	# LOC/duty cycle mean (min - max)
Breeder	Male	610	40872	9	27/05/2011 21∶00	29/05/2011 20∶22	29/05/2011 21∶13	2	1 (50.0)	NA	NA	NA
Breeder	Male (?)	480	40866	5	27/05/2011 21∶30	30/05/2011 2∶57	08/07/2011 6∶10	30	2 (6.7)	2 (7.1)	11	2.36 (1–6)
Breeder	Male	630	40895	9	27/05/2011 22∶30	29/05/2011 19∶27	26/06/2011 10∶11	95	23 (24.2)	8 (11.1)	12	5.33 (3–8)
Breeder	Female	555	40825	5	28/05/2011 21∶00	29/05/2011 16∶53	29/06/2011 10∶16	27	3 (11.1)	4 (16.7)	11	1.81 (1–4)
Breeder	Male	490	40870	9	29/05/2011 0∶00	29/05/2011 19∶24	23/06/2011 13∶24	73	15 (20.5)	9 (15.5)	11	4.45 (1–9)
Non-breeder	Female	520	40823	5	29/05/2011 0∶00	01/06/2011 4∶13	19/06/2011 22∶17	36	12 (33.3)	4 (16.7)	8	2.5 (2–4)

WB: weight bird. WD: weight device. LOC: location. CONT: continent. DISC: discarded. DC: duty cycle.