Length	Bird
22	1
23.9	1
20.9	1
23.8	1
25	1
24	1
21.7	1
23.8	1
22.8	1
23.1	1
23.1	1
23.5	1
23	1
23	1
21.8	2
23	2
23.3	2
22.4	2
23	2
23	2
23	2
22.4	2
23.9	2
22.3	2
22	2
22.6	2
22	2
22.1	2
21.1	2
23	2
19.8	3
22.1	3
21.5	3
20.9	3
22	3
21	3
22.3	3
21	3
20.3	3
20.9	3
22	3
20	3
20.8	3
21.2	3
21	3