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Table 1 Canada Warbler geolocator model information for units that were deployed in 2014 and 2015 for sites in Alberta, Manitoba, New Hampshire and Québec

From: Widely distributed breeding populations of Canada warbler (Cardellina canadensis) converge on migration through Central America

Model Type

W30Z11-DIP

W50Z11-DIP

P30Z11–7-DIP

Weight

0.30 g

0.42 g

0.36 g

Approximate battery life

7 months

10 months

7 months

Light stalk present

No

No

Yes

Geolocator make

Migrate Technology Ltd

Migrate Technology Ltd

Biotrack

Mass with polypropylene harness

0.320 g

0.440 g

–

Average percent of total body mass of unit with polypropylene harness

3.1%

4.2%

–

Weight with Stretch Magic harness

0.316 g

0.421 g

0.370 g

Average percent of total body mass of unit with Stretch Magic harness

3.0%

4.1%

3.7%