THE METHODS OF THE BIRD PHOTOGRAPHER 39 
seems to pay no especial attention to the Owl; the 
Wood Thrush utters its sharp pdt-pit, but is con- 
tent to let well enough alone if its own nest be not 
threatened; and the Yellow-throated, Red-eyed, and 
White-eyed Vireos, particularly the latter, add their 
complaining notes to the chorus of protests. Not 
one, however, approaches the Catbird in the force 
of its remarks, nor does the bird cease to outcry so 
long as the Owl is visible. 
It is felt that in the foregoing suggestions the 
methods which may be employed by the bird pho- 
tographer are very inadequately described, but, as 
was remarked in the preface of this volume, the con- 
stantly varying circumstances attending his work 
practically prohibit duplication of experience. 
In truth, herein les the great charm of animal 
photography. We have not to follow certain for- 
mul, but each subject presents its own individual 
requirements, making the demands on the natural- 
ist’s skill and patience limitless and success propor- 
tionately valuable. 
