Model Model ∆AICc df w
1 TL = sex + population + tarsus + NAO_30 0.0 8 0.203
2 TL = sex + population + tarsus + NAO_30 + population*tarsus 0.2 9 0.180
3 TL = sex + population + age + tarsus + NAO_30 1.4 9 0.099
4 TL = sex + population + age + tarsus + NAO_30 + population*tarsus 1.7 10 0.088
5 TL = sex + population + tarsus + NAO_30 + brood size 2.1 9 0.072
6 TL = sex + population + tarsus + NAO_30 + population*tarsus + brood size 2.3 10 0.064
7 TL = sex + population + NAO_30 2.3 7 0.064
8 TL = sex + population + tarsus 2.9 7 0.048
9 TL = sex + population + tarsus + population*tarsus 3.2 8 0.041
10 TL = sex + population + age + tarsus + NAO_30 + brood size 3.5 10 0.035
11 TL = sex + population + age + tarsus + NAO_30 + brood size + population*tarsus 3.7 11 0.031
12 TL = sex + population + age + NAO_30 3.8 8 0.031
13 TL = sex + population + age + tarsus 4.3 8 0.024
14 TL = sex + population + age + tarsus + population*tarsus 4.7 9 0.020