species	mass	dees
Northern_pygmy-owl	0.07	3.95
Saw-whet_owl	0.08	4.08
American_kestrel	0.12	2.75
Merlin	0.19	3.03
Short-eared_owl	0.35	2.27
Coopers_hawk	0.45	3.16
Prairie_falcon	0.72	2.19
Peregrine_falcon	0.72	2.8
Great_horned_owl	1.4	2.45
Rough-legged_hawk	0.99	1.33
Gyrfalcon	1.4	2.24
Red-tailed_hawk	1.08	2.56
Great_gray_owl	1.08	2.06
