TABLE 1.
Bird morphometrics and details of tracking devices attached to three species of jaegers in the Canadian Arctic Archipelago, 2010–2011 and 2018–2019
| Species | Field ID (band number) | Inferred sex | Date deployed (m/d/y) | Bird mass (g) | Culmen (mm) | Total head (mm) | Wing chord (mm) | Diagonal tarsus (mm) | Tag model | Tag mass (g) | Tag % of mass | Tracking duration (days) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Long‐tailed Jaeger | LTJA‐NI‐2019‐01 (1393‐00730) | Female | 6/15/2019 | U (>300) | 27.5 | 70.6 | 314 | 42.9 | Argos | 5 | U | Still transmitting as of 17 November 2021 |
| LTJA‐NI‐2019‐02 (1393‐00729) | Male | 6/23/2019 | 265 | 26.3 | 69.1 | 300 | 39.2 | Argos | 5 | 1.9% | 266 | |
| Parasitic Jaeger | PAJA‐NAS‐2010‐01 (794‐63804) | Female | 7/12/2010 | 475 | 30.9 | 77.9 | 344 | 45.1 | GLS | 2.1 | 0.4% | 329 |
| PAJA‐NAS‐2011‐01 (794‐63806) | Male | 8/7/2011 | 510 | 29 | 76 | 330 | 44.6 | GLS | 2.1 | 0.4% | 309 | |
| PAJA‐NI‐2018‐01 (894‐51404) | U | 6/28/2018 | 445 | 29.4 | 77.8 | 309 | 44.3 | Argos | 9.5 | 2.1% | 303 | |
| PAJA‐NI‐2018‐02 (894‐51401) | Male | 7/5/2018 | 448 | 28.2 | 76.9 | 330 | 45.8 | Argos | 9.5 | 2.1% | 236 | |
| Pomarine Jaeger | POJA‐NI‐2019‐01 (1015‐00108) | U | 7/2/2019 | U | 37.9 | 90.7 | 372 | 53.7 | Argos | 9.5 | U | 361 |
NI: Nanuit Itillinga (Polar Bear Pass) National Wildlife Area, Bathurst Island, Nunavut, Canada (75°43′17.07″N, 98°24′8.41″W). NAS: Nasaruvaalik Island, Nunavut, Canada (58 km from NI, 75°47′60″N, 96°17′60″W). U: Unknown. Argos: Microwave Telemetry solar‐powered satellite tag. GLS: Lotek light‐level geolocator. For LTJA‐NI‐2019‐01 only the first year of tracking is included in this study.