Common Merganser,  Mergus merganser

Common Merganser was added to the LBRC Review List on 11 Mar 1989.
Number of LBRC-accepted Common Merganser records for Louisiana as of 25th Report of the LBRC (2022) = 8.

 

 

Accepted Records

One female (1990-16) from 23 Dec 1990-22 Feb 1991, Orleans: New Orleans, Industrial Parkway at Airco plant; Gwen B. (ph taken 22 Feb) & Alfred E. Smalley, Paul E. Lehman, Shawneen Finnegan (ph taken 22 Feb), and John P. Sevenair; AB 45(2): 284.

One female (1991-66) on 14 Dec 1991, Cameron: just N of Sabine NWR, E of Hwy. 27 [Sabine NWR CBC]; Joseph P. Kleiman and M. Mark Swan (card); AB 46(2): 276.

One female (2009-07) on 10 February 2009, Terrebonne: Cocodrie, from docks at LUMCON; Russell Martin, Jr. and John Conover (ph).

Photo by John Conover

One in female plumage (2013-047) on 23 November 2013, St. Tammany: Mandeville, Sunset Point on Lake Pontchartrain; Janine Robin (ph).

Photo by Janine Robin

Three in female plumage (2013-057) on 14-23 December 2013; Union: D�Arbonne Lake spillway; John Dillon (ph), Stephen L. Pagans (ph), and Joan Brown (ph only).

Photo by Steve Pagans

One female (2015-001) on 15 February 2015, Orleans: New Orleans, Lake Pontchartrain at Hayne Blvd. and Gannon Rd.; Phillip A. Wallace (ph). Reportedly found by Kenneth V. Rosenberg.

Photo by Phillip A. Wallace

One female (2014-126) on 5 January 2014, Caddo: Cross Lake; Dot Rambin (ph).

Photo by Dot Rambin

One female (2017-082) on 30 December 2017 and 15 March 2018, Iberville: St. Gabriel, LSU Agriculture Research Station; J. V. Remsen (ph), Remsen report 15 March, Paul E. Conover (ph), Steven W. Cardiff and Donna L. Dittmann (ph).

Photo by J. V. Remsen

Unaccepted Records

One pair (1993-67) on 18 Dec 1993, Ouachita: Ouachita River, 2 mi. W of Sterlington. Most members agreed that the description of this fly-by duck pair was just too brief to support identification of even the well-marked male of this species. There remain few well-documented reports for the state.

Two males (1996-82) on 29 Dec 1996, Orleans: New Orleans, Lake Barrington on I-10 East Service Road. The observer did not provide a detailed enough description to allow definitive identification of this species and elimination of similar species, which is unfortunate because the observer described a fairly lengthy (5 minutes) and close (40 ft.) observation. Although these ducks may have been correctly identified, members believed that the documentation submitted was inadequate for acceptance.

One male (2001-143) on 15 December 2001, Cameron: Sabine NWR, west cove (Sabine CBC). This record involved a brief observation of a bird flying away from the observer. Most Members believed that the description was inadequate for identification of this species with greatest concern that the observer did not emphasize how white the underparts appeared as well as noting details reported of the wing patch were incorrect.

Two, male and female (2001-049) on 28 December 2001, St. Tammany: Big Branch NWR, non-motorized boat launch canal. This record received a split vote with just over half of Members not accepting. Most believed that, although the identification was possibly correct and the observer seemed knowledgeable of waterfowl, the overall body of evidence was inadequate to support acceptance.

Two females (2014-100) on 22 November 2014, Union: Lake D�Arbonne Dam. These birds were observed from a considerable distance, and, although possibly correctly identified, the supporting description was rudimentary and critical field characters were either not seen or not described.

One female (2015-010) on 13 January 2015, St. Tammany: Slidell, 393 Carr Dr. Most Members were concerned that the description was extremely brief given the reported circumstances/viewing conditions, and that the similar Red-breasted Merganser was not convincingly eliminated.

Eleven (2016-024) on 11 December 2016, Union: Farmerville, Lake D�Arbonne (ph). Although distant, it was determined that the photographs actually show only Northern Pintail and Canvasback (and no Common Mergansers).

One male (2016-069) on 18 December 2016, Cameron: near Hackberry on Hwy. 27, N29.949361�, W93.368�. Although the description was generally good, all Members had reservations about accepting because of the circumstances, which involved a quick observation from a vehicle while driving at highway speeds.