Effects of Variable Food Supply on the Body Condition of Breeding Tawny Owls Strix aluco in Southern Finland
Figure 1
The relationship between the body mass (g) and Julian Day (that indicates the seasonal status of prey availability; March 1 = 0) in breeding tawny owl females (black dots) and males (open dots) of the study population in 1986–2006 (linear regression: , and , , resp., see also Table 1).
