The Season 



221 



various kinds. These terrific storms must 

 have been very destructive to nesting birds. 



The most marked feature of the bird migra- 

 tion at Minneapolis this year was the almost 

 entire absence of the usual mid-May Warbler 

 wave. Nearly all the possible species were 

 seen by one or another observer but for the 

 most part in only limited numbers. At Red 

 Wing, on the Mississippi River, about 45 

 miles southeast of Minneapolis, there was a 

 single large flight of mixed Warblers on 

 May 9 which lasted only a single day (Miss 

 Densmore). A probable explanation of their 

 failure to appear here is that the advent of 

 hot weather caused them to make an abrupt 

 forward movement of such length that it 

 carried them entirely over this locality and 

 there were no succeeding large waves. About 

 the middle of the month we plungei 1 into al- 

 most summer conditions and from that time 

 on very few migrating Warblers were seen. 



An idea of the progress of the season can 

 be gained from the following outline calendar. 

 I am indebted for many items in this record 

 to the following persons: Mr. and Mrs. F. W. 

 Commons, Mrs. Phelps Wyman, Mrs. C. F. 

 Keyes, Mr. E. D. Swedenborg, and the 

 Misses Carol H. Webb, Agnes W. Williams, 

 and Harriet F. Younglove, members of the 

 1922 University bird class who did consid- 

 erable independent field work. 



April i£. Turkey Buzzard. Myrtle War- 

 blers at Anoka (Gillis). Striped gopher. 



April 16. Hundreds of Myrtle Warblers, 

 the first of several waves. Tree Swallows; 

 Chipping Sparrow; a pair of Brewer's Black- 

 birds. Robins building. A Kingfisher select- 

 ing a nesting place. A Broad-winged Hawk. 

 Marsh Hawk. Mourning cloak butterflies 

 have been out for several days. Hepatica and 

 blood-root in bloom. 



April ig. American Bittern. 



April 20. Loon. Robin's nest with one egg. 



April 21. A large flock of Evening Gros- 

 beaks. Lesser Yellow-legs. 



April 22. Brown Thrasher. Large flocks of 

 Flickers have been passing for several days. 

 Hazel in bloom. City lawns are now green 

 and the elms are a russet-brown haze with 

 the swelling flower-buds. 



A pril 23 . Chewink ; Cowbird ; Swamp Spar- 

 row; Yellow-headed Blackbirds (males). 



April 24. Chimney Swift. 



April 26. Horned Grebes (10 to 12); Barn 

 Swallow; Bank Swallow, a colony just arrived 

 at their holes. Dutchman's breeches in bloom. 



A pril 28. Solitary Sandpiper. 



April 2g. Common Tern: a flock of 50 

 Yellow-legs and the following Ducks all in 

 pairs and apparently mated — BufiSehead, 

 Ruddy, Shoveler, Mallard, Ring-neck and 

 Blue-winged Teal. Box-elder, ironwood, 

 Cottonwood and elm in full bloom. First 

 dandelions. 



April 30. Palm Warblers; many White- 

 throated Sparrows; Flickers digging nesting- 

 holes. Wild ginger and large-flowered bell- 

 wort in bloom. 



May 1 . Wood Thrush. Watched a flock of 

 Double-crested Cormorants on Lake Minne- 

 tonka engaged in their curious mating antics. 



Wood anemone, marsh marigold and tooth- 

 wort {Dentaria laciniata) in bloom. The 

 white birch trees with their small, light green 

 leaves and slender, drooping catkins look as 

 though draped with delicate lace. 



May J. Black-throated Green, Yellow, and 

 Black and White Warblers; House Wren; 

 Veery; many Grinnell's and one Louisiana 

 Water-Thrush; Dove's nest with young; 

 Sora; one Greater Yellow-legs with the lesser 

 species. The Greater Yellow-legs is a rare 

 bird hereabouts of late years. The Sora Rail 

 has almost disappeared from our marshes 

 during the last two years. The three-flowered 

 geum and ground plum in bloom. 



May 5. Rose-breasted Grosbeak and Spot- 

 ted Sandpiper. Yellow violets in bloom. 



May 6. Pine and Tennessee Warblers; 

 Scarlet Tanager; Baltimore Oriole; Clay- 

 colored Sparrow. 



May 7. Yellow-throated Vireos at Elk 

 River (Bailey). The trees are now well leafed 

 out and the lawns are green as summertime 

 and everywhere dotted with dandelions. 

 Tulips, daffodils, and the Missouri currant in 

 bloom. 



May 8. Maryland Yellow-throat and Red- 

 eyed Vireo. 



May g. Olive-backed Thrush, Catbirds, 

 Least Flycatchers, Kingbird, Ovenbird, Mag- 

 nolia and Wilson's Warblers, Redstart, 

 Nighthawk. Red-berried elder in full bloom. 

 First white cabbage butterflies. 



