EARED GREBE

Podiceps nigricollis californicus

Status: Common regular spring and fall migrant central and west, fairly common east. Common regular breeder north and west, rare southeast. Rare casual summer visitor south and east.

Documentation: Specimen: UNSM ZM6006, 25 Sep 1927 Lancaster Co.

Taxonomy: Three subspecies are recognized, one, californicus, in North and Central America (Pyle 2008). Nebraska birds are californicus.

Changes since 2000:  Until 2007, the only breeding locations were in the western Sandhills; in 2007 breeding was confirmed in the Rainwater Basin, where there are now five records.

SpringMar 11, 12, 13<<<>>>Jun 12, 13, 14

The main migratory movement occurs mid-Apr through early May. Last dates above are away from the breeding range; such reports are few after mid-May. There are earlier reports of eight on 8 Mar 2006 at Harlan Co Reservoir, Harlan Co, and a later report 19 Jun 1988 Pierce Co.

  • High counts: 460 at North Platte SL, Lincoln Co 2 May 2004, 450 at Crescent Lake NWR, Garden Co 12 May 1999, and 392 in Sheridan Co 18 May 2004.

SummerThe current breeding range is the western Sandhills, with breeding in the Rainwater Basin occurring irregularly since 2007. The eastern extent of regular breeding in the Sandhills appears to be in Cherry Co (Ducey 1988); Blake and Ducey (1991) gave no records for Holt Co, calling it a “possible summer resident” only. Breeding is highly dependent on suitable water conditions (Sharpe and Payne 1966).

Nesting was confirmed for the Rainwater Basin in 2007; a nest with three eggs was at Funk WPA, Phelps Co 2 Jul 2007 (Mollhoff 2008). This may have been the first record of attempted nesting south and east of the central Sandhills since 1914-15 (Ducey 1988). In 2008, two nests were discovered at Kirkpatrick Basin North WMA, York Co on 22 Jun; additional nesting records from the Rainwater Basin include a pair (two of 14 birds present) building a nest at Waco/Spikerush WMAs, York Co 26 May 2007 and one (of 28 present) “exhibiting nesting behavior” at Harvard WPA, Clay Co 28 May 2007. Only the fifth accepted Rainwater Basin nesting record, and first modern successful breeding record there, was at Marsh Hawk WMA, Fillmore Co 3 Jul 2015; there were 11 nests with eggs, but by 9 Aug most nests were abandoned and only one pair with young was seen (Jorgensen 2016).

There are 11 additional breeding season reports from the Sandhills and Rainwater Basin without definitive evidence of breeding activity including five from Lincoln Co since 1972, and from Keith Co, where a report without details of breeding on Keystone Lake in 1977 is best considered hypothetical (Rosche 1994, Brown and Brown 2001), although 1-2 were present through summer 2001 at Lake Ogallala, Keith Co and another was there 19 Jun 2004.  A pair was noted on the Oshkosh SL, Garden Co, “a likely breeding location” 17 Jul 1988 (Rosche 1994).

On occasion, large concentrations of nests occur, such as the 90-100 at Lakeside, Sheridan Co 12-14 Jun 1998, the 100+ on nests at Bunger Lake, Sheridan Co 23 Jun 2003, and a colony in Cherry Co with 600-700 pairs (Mollhoff 2001).

  • Breeding Phenology:
    Nest-building: 28 May
    Eggs: 2 Jun-11 Jul
  • High counts: 932 at Crescent Lake NWR 10 Jul 1997, 436 there on 13 Jun 1996, and 266 there 18 Aug 2017.

FallAug 20, 22, 23 <<<>>> Dec 18, 19, 19

Peak movement occurs in Oct. Early dates above are away from the breeding range. There are earlier reports of 45 on 21 Jul 2000 at North Platte SL, Lincoln Co, 31 Jul 2013 Branched Oak Lake, Lancaster Co, 5-6 Aug 2000 at Harlan Co Reservoir, 11 Aug 2002 at Branched Oak Lake, and 13 Aug 2000 in the eastern Rainwater Basin. Late occurrences are of two at Lake Ogallala 12-14 Dec 1998 which apparently remained until 2 Jan 1999 (Jorgensen 2001), and one near Hastings, Adams Co as late as 30 Dec 1928-20 Jan 1929 (Jorgensen 2012).

  • High counts: 487 in the western Panhandle 16 Oct 1999, 77 at Box Butte Reservoir, Dawes Co 20 Sep 2000, and 69 at Sutherland Reservoir, Lincoln Co 7 Nov 1994.

Abbreviations

NWR: National Wildlife Refuge
SL: Sewage Lagoons
UNSM: University of Nebraska State Museum
WMA: Waterfowl Management Area (State)
WPA: Waterfowl Production Area (Federal)

Literature Cited

Blake, L., and J. E. Ducey. 1991. Birds of the eastern Sandhills in Holt County, Nebraska. NBR 59: 103-132.

Brown, C.R., and M.B. Brown. 2001. Birds of the Cedar Point Biological Station. Occasional Papers of the Cedar Point Biological Station, No. 1.

Ducey, J.E. 1988. Nebraska birds, breeding status and distribution. Simmons-Boardman Books, Omaha, Nebraska, USA.

Jorgensen, J.G. 2001. 1999 (Eleventh) Report of the NOU Records Committee. NBR 69: 85-91.

Jorgensen, J.G. 2012.  Birds of the Rainwater Basin, Nebraska.  Nebraska Game and Parks Commission, Lincoln, Nebraska, USA.

Jorgensen, J.G. 2016.  A summary of 2015 breeding bird surveys of selected Rainwater Basin wetlands.  Nongame Bird Program of the Nebraska Game and Parks Commission, Lincoln, Nebraska, USA.

Mollhoff, W.J. 2001. The Nebraska Breeding Bird Atlas 1984-1989. Nebraska Ornithologists’ Union Occasional Papers No. 7. Nebraska Game and Parks Commission, Lincoln, Nebraska, USA.

Mollhoff, W.J. 2008. The 2007 Nebraska nest report. NBR 76: 155-165.

Pyle, P. 2008. Identification Guide to North American Birds. Part II, Anatidae to Alcidae. Slate Creek Press, Bolinas, California, USA.

Rosche, R.C. 1994. Birds of the Lake McConaughy area and the North Platte River valley, Nebraska.  Published by the author, Chadron, Nebraska, USA.

Sharpe, R.S., and R.R. Payne. 1966. Nesting birds of the Crescent Lake National Wildlife Refuge. NBR  34:31-34. 2016.

Recommended Citation

Silcock, W.R., and J.G. Jorgensen.  2018.  Eared Grebe (Podiceps nigricollis), Version 1.0. In Birds of Nebraska — Online. www.BirdsofNebraska.org


Birds of Nebraska – Online