Size Designations and Band Numbers
Aluminum Bands (Butt-end, Lock-on, and Rivet)
There are 22 sizes of bands (not including hummingbird bands) currently used in North American banding. Their approximate inside diameter and height is as follows:
BAND |
INTERNAL |
HEIGHT OF |
BAND TYPES* |
Hummingbird |
1.27-1.52 mm |
1.6 mm |
B |
0A |
1.98 mm |
5.5 mm |
B |
0 |
2.11 mm |
5.5 mm |
B |
1 |
2.39 mm |
5.5 mm |
B |
1B |
2.77 mm |
5.5 mm |
B |
1P** |
2.84 mm |
5.5 mm |
B |
1A |
3.18 mm |
5.5 mm |
B |
1D |
3.50 mm |
5.0 mm |
B |
2 |
3.96 mm |
6.7 mm |
B |
3 |
4.78 mm |
6.7 mm |
B |
3B |
5.16 mm |
6.7 mm |
B |
3A |
5.56 mm |
6.7 mm |
B |
4 |
6.35 mm |
9.5 mm |
B, L |
4 Short |
6.35 mm |
7.0 mm |
B |
4A |
7.14 mm |
9.5 mm |
B, L |
4A Short |
7.14 mm |
7.0 mm |
B |
5 |
7.95 mm |
9.5 mm |
B, L |
5A |
8.74 mm |
9.5 mm |
B |
6 |
9.53 mm |
9.5 mm |
B, L |
7A |
11.13 mm |
14.0 mm |
B, L |
7A Short |
11.13 mm |
9.5 mm |
B |
7 |
12.70 mm |
12.7 mm |
B |
7B |
13.49 mm |
12.7 mm |
B, L |
7B Short |
13.49 mm |
9.5 mm |
B |
7D*** |
15.0 mm |
12.7 mm |
L |
8 |
17.48 mm |
15.8 mm |
B, L |
8A |
20.65 mm |
15.8 mm |
B, R |
9 |
22.23 mm |
15.8 mm |
B, L, R |
9A**** |
25.39 mm |
15.8 mm |
R |
9C |
28.58 mm |
28.5 mm |
B, R |
* B - Butt-end bands available; L - Lock-on bands available; R - Rivet bands available
** Snowy Plover ONLY; no other species to be banded with this size.
*** Lock-on ONLY; no butt-end bands available.
**** Available Mid March 2013
