preening-time
3.400000000e+001
2.400000000e+001
1.000000000e+001
1.600000000e+001
5.200000000e+001
7.600000000e+001
3.300000000e+001
3.100000000e+001
4.600000000e+001
2.400000000e+001
1.800000000e+001
2.600000000e+001
5.700000000e+001
3.200000000e+001
2.500000000e+001
4.800000000e+001
2.200000000e+001
4.800000000e+001
2.900000000e+001
1.900000000e+001