--Mrs. Michael and I spent the day of January 10, 1934, at Mission Bay, San Diego County, California. Last Novem- ber when we were there we had several visits with the Greater Yellow-legs (Totan.us melcmleuus) and got to know this species fairly well. The Lesser Yellow-legs, (Totaus flavipes), however, remained a complete stranger. About all we knew about him was that he is a small facsimile of the Greater Yellow-legs and that he is not supposed to be in this section of the country at this time of year. On the day in questSon soon after we arrived at the mud fiats two birds took Wing and instantly we realized that they were not among the shore birds that we were accustomed to seeing. We both guessed Yellow-legs. Their graceful flight car- tied them up an arm of the slough. We followed along the railroad drack and where the arm of the slough meandered close to the track we found the birds feeding. One was feeding in the company of two Willets and two Godwits, the other was on the shore near a Willet and a Black~bellied Plover. Now we were intTigued; the birds were too small to be the Greater Yellow-legs. Feeding side by .side with the Willet, the Yellow-legs appeared but half his bulk. Standing with his head held high, there was not such a great difference in the height of the birds although it was quite appar- ent that the Willet was the taller of the two. Now the Willet is a slender bird, but the Yellow-legs was noticeably of a more slender build. He was a rangy bird, of quick and jerky movements, and he moved over his feeding ground with long strides. He appeared to step out with wider and more "get there" strides than other shore birds use. He did not forage systematically, but moved rapidly along, making flash- ing jabs in the mud on both sides and in front. Foraging in this manner he was con- stantly jerking his head from side to side. During occasional pauses he would up-bob his head in the manner of a Willet, only more so. Most of the time he was feeding in shallow water, but often he got in belly-deep. The Willets and Godwits that were feeding with the Yellow-legs appeared to probe more intelligentiy; in other words, they probed only where a prospect was indi- cated. The Yellow-legs jabbed indiscriminately. His system, if any, was to work fast, jab everywhere miss or hit, and by covering more ground than the systematic probers he would fare as well in the end. And besides, all his actions seemed to indicate a nervous disposition that would not permit of the slow but sure methods. Standing beside the Yellowdegs, the Black-bellied Plover looked plumper and more hunchy than ever; actually his body appeared to bulk larger and heavier than the body of the Yellow-legs. For two hours we sat on the bank of the slough with one Lesser Yellow-legs on our righ and one on our left, all of he time hoping that one or the other would move within photographic range, but no luck. During this time several other WilleLs arrived to feed on he same flat with the Yellow-legs. Much of the time the birds were a hundred yards from where we sat, but even at this distance i was no trick at all to separate Yellow-legs from his companions. As he moved about, his quick, jerky mannerisms, his ceaseless jabbings and his hurried stridings set him apart. And also at this distance his gleaming breast was a conspicuous mark compared with the dull breasts of the WilleLs. Later in he day we saw ether Lesser Yellow-legs and finally we gob within "shooting" range. This was a mater of luck; we had the camera set up and were taking a picture of a Long-billed Curlew when our friend the Yellow-legs walked into the scene. During the day we saw nine Lesser Yellow-legs; always they were feeding wih other shore birds, but not once did we see two Yellow-legs feeding tegether.--C]As. W. MXCHAI, Yosemite, California, June , 193.