Tag Harness Sizes
This table lists harness sizes for the pre-fabricated ‘figure eight’ leg loop harness method based on real sizes used on individuals tagged in the field. Sizes include the length of the entire single leg-loop, but do not include overlap with the tag. Weights can be used to help specify which harness size to use.
Please note that these are guidelines. Regardless of what sizes you find here, the harness should always be fitted to the individual. Please see a How to Tag Animals for more information.
Species
Harness Size (mm)
Weight (g)
Sample size
Yellow-billed Cuckoo
50-61
43-80
10
Black-billed Cuckoo
52
34
1
Hammond's Flycatcher
29
9.5
1
Dusky Flycatcher
34
1
Say's Phoebe
37
23.5
1
White-eyed Vireo
28-34
9-12
5
Warbling Vireo
33-35
13-14
3
Red-eyed Vireo
39-42
15-20
100+
Bank Swallow
32-34
10-13
50+
Barn Swallow
34-37
17-19
80+
House Wren
33
11
1
Eurasian Reed Warbler
30
9-13
60+
Gray-cheeked Thrush
50-54
26-37
30+
Bicknell's Thrush
46-50
24-30
12
Swainson's Thrush
48-52
25-36
100+
Brown Thrasher
62
67
1
Golden-winged Warbler
29
8
1
Orange-crowned Warbler
29-32
8-10
4
Kentucky Warbler
34-35
12-15
2
Hooded Warbler
30-34
9-14
4
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