ly with her bill and Green Eyes was still in the nest; but Brown Eyes had evidently followed me over, although I had not seen her come, and came climbing up to the nest; but as soon as she saw me sitting in the crotch of the tree, came over to me, got a worm and took it to her mate in the nest. Brown-eyes is carrying her wing tips lower this morning, so this may not be a distinctive difference between the two birds. I have not yet looked to see if there is another egg this mor- nning, as the birds are sitting very closely. At present Green-eyes is doing most of the incubating; just the reverse of yesterday. These two birds, except under the most favorable conditions and when seen together, look exactly alike, and unless I can see their whole bodies, or the color of their eyes, or some temporary acci- dental difference, it is almost impossible to tell them apart. Es- pecially now that G.E. is getting tamer. To be certain which is on the nest, it is usually necessary to find the other bird and get a good close look at it, thus identifying the other indirectly. This does not always work either, because while I am doing this, they sometimes change places without my being able to follow them both in the process. At 9:55 Green Eyes was still in the nest, B.E. digging earnest- ly below it and often looking up at it. The latter soon went up and after some billing, G.E. flew out and B.E. took his place so quickly that I did not get a chance to look in. (Came in to write this note. Will go out now, 10:00, to see what G.E. is doing). 10:15. He was digging, of course, at the south side of the glade. After some coaxing he came and took worms, but refused soft food. It is odd that these birds have different attitudes toward this food.