Cooper’s Hawk.—The following is the date of different nests found this year: May 11th, one nest containing four fresh eggs. May 15th, one containing four and another containing five eggs, all of which were fresh. May 17th, two more nests containing five eggs each. These were slightly incubated. May 11th I received a full set of eggs of the Marsh Harrier, five in number. The nest was placed on the ground in the prairie grass. Two more nests were found, May 18th, containing respectively five and six eggs. These last were slightly incubated. May 17th I also found a nest of the Short-eared Owl. It was on the ground in the prairie grass and contained eight beautiful white eggs. A good Pointer dog is invaluable to any one collecting eggs here, as these Owls and Hawks give chase whenever he comes near their nest. The dog will come very handy also to find the nests of Prairie Hens, Plover, Larks, &c.—_H. A. Kline, Polo, Ill._ The Prothonotary Warbler. This beautiful little _Protonotaria citrea_ is quite rare in Kansas, yet I had the good fortune to find four nests last June. Early in May I saw a Downy Woodpecker making an excavation in the dead limb of a small elm tree standing on the edge of a forest and on the bank of the Big Blue River. I watched the tree for several days, but, for some cause, the birds abandoned the work. On June 9, in passing this tree I saw a bird fly from the hole so swiftly that I could not determine the species. I hid in some bushes near by, and after waiting about ten minutes was rewarded by seeing a pair of the Prothonotary Warblers approach through the trees. They flew directly to the elm tree; and, after a moment’s hesitation, the female entered the hole, while the male flew away into the forest. I then crept silently to the nest, which was not more than six feet above the ground. By quickly placing my hand over the hole and allowing sufficient opening between my thumb and finger for the admission of the bird’s head but not its body, I easily caught the bird and examined it at my leisure. I have frequently caught Woodpeckers, Bluebirds, Chickadees and Wrens in this manner. When the bird was released it uttered a short, distinct call which brought the male bird promptly from the trees near by. They then flew away together. Returning to the tree I secured the nest and complement of five fresh eggs. This nest was composed of fine grapevine bark, dry weeds, and horse hair. The structure was rather frail and deeply rounded. Around its upper edge were arrayed bits of skeleton oak leaves whose delicate lace-like tracery of veinlets gave evidence of greater taste than I had before seen in bird architecture. The eggs were much rounded in shape. The color was white with a pinkish hue, and dotted with spots of brown and lavender. At the larger end these spots were so thick as to become confluent. The eggs were similar in size and markings.