back as the shrike got too close upon which the shrike would at once back off. After a while the shrike started giving a low screech - what? each a worrying note. I have heard wild shrikes give this while they have just caught conjured - a bird on the desert did this while it had a big lizard conjured in the tree and then thought. It seems to indicate both horror provocation at being threatened and defiance. It somehow reminds me of a mouse not given which attacking a cat. - Indicate if a situation a little bigger than can be handled. Saturday. A detailed investigation of the breast feathers today showed conclusively that the new feathers are very much lighter in the above, than the old, "rich" brown feathers. Most of these feathers are on the edge of the trails - at least there are the sagiest to see yet others in the midst of the tract are also emitting light. No new darker feathers could be found. The phylogenetic implications of these observations should be followed up.