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Table 1 Movement summary of Gray Catbirds (Dumetella carolinensis) fitted with GPS tags

From: Migration ecology of western gray catbirds

       Fall Spring
Tag ID Bird ID Sex Year Fix Loc. Depart Arrive Length (Days) Distance
(km)
Speed
(km/day)
Depart Arrive Length
(Days)
Distance (km) Speed (km/day)
British Columbia
 42000 YRGX M 2017 23 NLE Sep 6 Oct 12 36 3905 108
 42005 YROX M 2017 53 TX Sep 10 Oct 12 32 3236 101
 48964 BBRX M 2018 46 SLP Sep 10 Oct 16 36 4686 130
 48961 BBXB M 2018 48 TAM Sep 12 Oct 14 32 4098 128
 48965 BBYX M 2018 51 TAM, SLP, HID Sep 16 Oct 22 36 4171 116
 48963 BBXD F 2018 28 TAM* Sep 6 Oct 16 40 4192 105
Mean ± SE     35 ± 1.2 4048 ± 193.5 115 ± 4.9      
Montana
 251 LLBkA F 2014 3 TAM Dec 7 3235
 262 DBkAR M 2014 4 TX Dec 7 2746
 245 RAWW M 2014 2 TAM Jan 7 3507
 40958 LRYA M 2016 8 TAM, HID Oct 18 3072
 48126 LRYA M 2017 38 TAM,
HID
Sep 14 Oct 19 35 3390 97 Apr 26 May 31 35 3501 100
 48120 ODAS M 2017 41 TAM, VER, HID Sep 9 Oct 14 33 3358 102 May 3 May 31 28 3424 122
 48121 OOAS F 2017 22 VER Sep 4 Oct 29 55 3911 71
 48123 DOGA F 2017 36 TAM, HID Sep 9 Oct 14 35 3579 102 Apr 26 May 24 28 3764 134
 48124 GOAS F 2017 40 TAM, VER Sep 19 Oct 19 30 3407 114 May 3 May 31 28 3677 131
 48131 WWAS M 2017 36 TAM, SLP, VER Sep 9 Oct 14 35 4032 115
 48133 RLGA F 2017 37 TAM, PUE Sep 9 Oct 14 35 3401 97 May 3
 48134 ADBkW M 2017 37 VER, HID Sep 9 Oct 4 25 3760 150      
Mean ± SE**    35 ± 3.2 3604 ± 76.2 106 ± 7.8    29 ± 2 3591 ± 78 122 ± 7.7
  1. *Last fix on October 16, assuming overwintering site but could potentially still be on migration
  2. **Mean (± Standard Error) but not including length or speed for units with less than 10 fixes
  3. Summary of GPS tags attached to Gray Catbirds in the South Okanagan Valley, British Columbia, Canada, and in the Bitterroot River Valley, Montana, USA with an emphasis on migration. Year is year GPS tag deployed. The fall depart date represents the last fix at the breeding site and the arrival date represents the first fix at the overwintering site. The spring depart date represents the last fix at the overwintering site and the arrival date represents the first fix back at the breeding site. Locations (Loc.) are abbreviated as Nuevo Leon (NLE), San Luis Potosi (SLP), Tamaulipas (TAM), Veracruz (VER), Hidalgo (HID), Puebla (PUE), and Texas (TX). Dashes indicate missing data: fall depart date is unclear from three Bitterroot River Valley catbirds due to first fixes occurring mid-migration; lack of spring migration data is due to premature battery exhaustion