North American Birds

VOLUME 69 NO3 2016

A Quarterly Journal of Ornithological Record Published by the American Birding Association. The mission of the journal is to provide a complete overview of the changing panorama of our continent’s birdlife.

Issue link: http://nab.aba.org/i/778845

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N O R T H A M E R I C A N B I R D S 406 I O WA & M I S S O U R I (DE). A pair of Northern Harriers in Kossuth 1 Jun (MK) and a pair carrying food in Palo Alto 18 Jun (Ed Thelen), both in Iowa, were the only indications of nesting. Elsewhere, singles were found in seven Iowa and three Missouri counties (m.ob.). Single Sharp-shinned Hawks were found in Boone, Carter, St. Louis, St. Louis City, and Saline in Missouri's Ozarks or Ozark Border, where the species is a rare summer resident. A Broad-winged Hawk nest near the Iowa state capitol building in Des Moines kept Iowa Department of Natural Resources staff - ers entertained and produced 2 young. Away from the Ozarks, where regular, single Broad- winged Hawks were found in Randolph, MO 14 Jun (EW), at Squaw Creek 19 Jul (RN), and at Fountain Grove 25 Jul (DC, KP, VC). Besides a nest at Springfield, Greene in their sw. Mis - souri stronghold (ph. CB), one or 2 Swain- son's Hawks were found in Clay, Johnson, and Platte near Kansas City, MO (Matt Gearheart, DC, VC, LO), and an out-of-range bird was in Franklin in e. Missouri 22 Jun (ph., †Jack Fore - man). Iowa's only Swainson's Hawk was one in Marshall 20 Jun (MP). RAILS THROUGH TERNS King Rails apparently nested at Otter Slough C.A., Stoddard, as evidenced by an imm. 3 & 13 Jul (ph. Stephen Dilks, ph. CB). Besides 9 Virginia Rails at Big Wall Lake, Wright 29 Jun (SJD), one or 2 were found in five Iowa coun - ties (MSIM, LS, RG, BL). Soras made a strong showing in both states. Mostly singles were found in 11 Iowa counties (m.ob.), and Mis - souri had nine records, including 14 at Co- lumbia Bottom C.A., St. Louis 11 Jul (†JM, CM, m.ob.), 8 at Clarence Cannon N.W.R., Pike 26 Jul (JM, CM), and s. as far as Dunklin 15 & 19-26 Jul (TiJ) and Pemiscot 29 Jul (TiJ) in se. Missouri. Common Gallinules were found at Squaw Creek (JH, Mac Williams), Swan Lake N.W.R., Chariton, MO (Daniel Tingley), and Mingo N.W.R., Stoddard (Bruce Beck) in Mis - souri and in four Iowa counties, including years, with 1036 nests and 920 young at Clin - ton spoil islands 26 Jun (SJD) and 71 nests at High Lake, Emmet 27 Jun (LS). Also at Clin - ton spoil islands, the American White Pelican colony had 442 nests and 705 young 26 Jun (SJD). Southbound migration of American White Pelican was evident, notably with 1150 at Saylorville 16 Jul (SJD). Both bittern species had typical years: single American Bitterns were found at six Iowa and two Missouri sites, and as many as 3 Least Bitterns were reported from seven Missouri and five Iowa counties (m.ob.). The Great Egret colony at Clinton spoil islands had 506 nests 26 Jun (SJD). Away from the Mis - sissippi River in Missouri, the only reports of Snowy Egrets were singles at Squaw Creek 13 & 19 Jul (RN, Mark Williams), at Four Rivers C.A., Vernon, MO 30-31 Jul (Sherry Leonardo, Micky Louis, m.ob.), and near Shenandoah, Fremont, IA 10 Jun (Jacob Newton). Other than one or 2 in Phelps, Miller, and Chariton in cen. Missouri and Ray, Jackson, Vernon, and Benton in w. Missouri (eBird), most Little Blue Herons were in se. Missouri. Cattle Egret re - ports were 2 at Waubonsie W.A., Fremont 15 Jun (SJD) and one in Woodbury 30 Jul (GLV) in Iowa. Black-crowned Night-Herons were found in nine Missouri and three Iowa coun - ties (eBird, m.ob.). Eight at Eagle Bluffs 26 Jun (Tom Halfen) were the most reported. The only Yellow-crowned Night-Herons were singles at Sedan Bottoms, Appanoose 12 Jun (ToJ) and near Brenton Slough, Dallas 27 Jul (RA, PA) in Iowa. The Region's only White-faced Ibis were one at Riverlands 1 Jun (ph. Allen Smith) and 6 at Schell-Osage C.A., Vernon, MO 30 Jul (JC). Seven Osprey nests were found at Stock - ton Lake, Dade/Polk/Cedar, MO (fide GS), and single birds were seen at Riverlands and in Adair, Clay, and Newton, MO. Iowa had 22 nests, including at new sites in Jasper, Polk, and Warren (PSc). Besides Mississippi Kites at their usual Iowa sites in Ottumwa, Wapello and Des Moines, Polk (m.ob.), one was in Bremer 5 Jul 2 Jul (MK, SJD), a Bufflehead at Union Hills W.A., Cerro Gordo, IA 15-27 Jul (BL, CF, RG, PH), single Common Mergansers in Linn, IA 20 Jun–31 Jul (JFo, BS) and Woodbury, IA 21 Jun (GVL), Missouri's seventh summer Red-breast - ed Merganser at Fellows Lake, Greene 19 Jul (†Jill Hays, †Joshua Russell), and single Ruddy Ducks in six Missouri counties (eBird). Nest - ing waterfowl included two Northern Shoveler broods in Dallas, IA 11 Jun (Dennis Thomp - son), a Redhead brood at Trumbull 4 Jul (LS), and four Ruddy Duck broods at Trumbull 26 Jul (LS). Northern Bobwhites continued to do well at the n. edge of their range, with two s. Iowa B.B.S. routes having their highest counts in years (KVS, ToJ). Fewer Gray Partridge than usual were found, with reports from five Iowa counties generally s. of its usual n.-cen./ nw. Iowa stronghold. Despite more than 100 Greater Prairie-Chickens being released in n. Missouri and s. Iowa this past spring, few were reported. In Missouri, up to 2 were at Dunn Ranch, Harrison 7 & 20 Jun (LO), and one was heard at Hi Lonesome Prairie C.A., Benton 15 Jun (MD), whereas Iowa had reports of one 3 Jun and 5 on 2 Jul at Kellerton Bird Conserva - tion Area, Ringgold (MSIM). The usual summering Common Loons in - cluded singles at three Missouri lakes and up to 3 at five Iowa locations (m.ob.). Trumbull was the center of grebe activity, with 130 Pied- billed Grebes and 62 broods 17 Jul (SJD), a pair of Red-necked Grebes with 3 young 6-19 Jul (LS), and as many as 8 ad. and one young Western Grebes there 26 Jul (LS, SJD). Other Western Grebes were singles in Black Hawk, IA 26 Jun (DE) and at Lake Rathbun, Appanoose, IA 4 Jul (ToJ). The Region's only Neotropic Cormorant was at Smithville Lake, Clay, MO 30 Jul (ph. Doug Willis). Iowa's two Double- crested Cormorant nesting colonies had good Continuing their presence in the Iowa and Missouri region, these Black-bellied Whistling-Ducks were in Jasper County, Missouri 17 June 2015. Photograph by Dennis Divine. SA Historically, Bald Eagles nested throughout most of Iowa, especially along the Missis- sippi and other major rivers. The last nesting eagles disappeared in the early 1900s. Starting with the first modern nest in 1977 in ne. Iowa, in the past 30 years Bald Eagles have rapidly reoccupied the state. In the past year, nests have been found in the last three Iowa counties previously without a known nest. All 99 counties now have at least one active nest—a natural recolonization without any human assistance. Population growth was slow at first, and by 1987 only four nests were known. The eagle population grew rapidly thereaf - ter, and by 1997, 62 nests were known from 35 counties. Since then, eagles have occupied the rest of the state and have even nested in counties with few woodlands or waterways, occupying farm groves and isolated woodlots as well as more natural sites along lakes and rivers. No complete count is available but the best estimate is that Iowa now contains more than 400 active eagle nests. Iowa's eagles tend to have high productivity, with most clutches having three eggs and many fledging 3 young (Stephanie Shepherd, BE, SJD).

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