250 The Common Raven 
position and in another my foot slipped and I narrowly avoided 
tumbling down into the nest. 
I would call particular attention to the arrangement of the eggs 
in these pictures, which is characteristic of the Ravens’ method 
when she has six eggs to incubate and is probably the only one 
which enables her to cover them in a satisfactory way when sitting. 
I have seen similar arrangements in other nests. 
