Sitta canadensis. Lake Umbagog, Maine. Male feeding female. 1896. Returning from a walk to Osgood's camping ground I found May.24. a Red-bellied Nuthatch's nest in a paper birch stub on the edge of the little opening at the west end of the point. The female was sitting but she came out when I rapped at her door. I spent a good part of the remainder of the day watching this nest with great interest and some profit. Quite regularly at intervals varying from 10 to 15 minutes the male came to it with a bill full of insects - large, gawzy-winged Diptera they looked like . He always alighted at exactly the same spot a little below and to the right of the hole and invariably, just after getting his foothold, called whee-whee-whee (a note new to me) in low but incisive tones. Instantly the bill of the female would appear at the opening (I could see nothing but her bill) and after thrusting the food into it the male would fly off in silence for a fresh supply.