IBA Species Data for Riverton Wildlife Area

These two tables show the data collected on criteria species and species concentrations as defined by the IBA technical committee. The data comes from the original IBA data collection process, Iowa Seasonal Field Reports, and the recent Breeding Bird Atlas project (2008-2012).

Criteria Species

Species	Date	Number	Breeding Status	Comments
Greater Prairie-Chicken	8/7/2012		CO-FL
Greater Prairie-Chicken	7/30/2012		PO-H
Greater Prairie-Chicken	4/2/2012		PR-C
Greater Prairie-Chicken	3/30/2012		PO-H
Greater Prairie-Chicken	4/6/2011		PR-T
Greater Prairie-Chicken	3/28/2011		PR-T
Greater Prairie-Chicken	4/7/2009		PR-C
Greater Prairie-Chicken	7/3/2008		CO-AY
Greater Prairie-Chicken	6/26/2008		PO-H
Greater Prairie-Chicken	6/16/2008		PO-H
Black-billed Cuckoo	5/27/2022	1		CHECKLIST
Black-billed Cuckoo	7/12/2008	1
Black-billed Cuckoo	7/12/2008	1		Photos
Black-billed Cuckoo	7/11/2008	1
Black-billed Cuckoo	7/11/2004	1
Black-billed Cuckoo	7/11/2004	1	OB-O
Black-billed Cuckoo	7/11/2004	1	PO-H
Common Gallinule	4/30/2012	1
Common Gallinule	10/27/2006	1
Piping Plover	5/5/2011	1
Piping Plover	4/29/2011	1
American Woodcock	4/18/2012	9
American Woodcock	3/16/2012	1
American Woodcock	4/6/2011		PR-T
American Woodcock	3/21/2010	5
Least Tern	4/10/2011	1		Small tern with white forehead,black cap,yellow bill,greyish back and wings. black on outermost primaries.Deeply forked tail. Closest veiw was 40 yards.
Least Tern	7/12/2008	1		1 adult
Least Tern	7/12/2008	1		Adult
Black Tern	5/12/2017	10
Black Tern	5/24/2011	160
Black Tern	5/22/2011	230
Black Tern	5/20/2011	280
Black Tern	5/11/2011	86
Black Tern	5/13/2010	146
Black Tern	5/28/2009	327
Black Tern	5/15/2009	56
Black Tern	6/3/2008	89
Black Tern	5/14/2008	168
Black Tern	5/6/2008	2
Black Tern	5/3/2008	1
Black Tern	5/30/2005	68
Black Tern	5/13/2003	17
Black Tern	5/25/1998	1
Forster's Tern	5/1/2011	16
Forster's Tern	4/30/2011	65
Forster's Tern	5/8/2009	27
Forster's Tern	4/22/2006	11
American Bittern	4/18/2012	1
American Bittern	5/1/2011	1
American Bittern	5/14/2009	2
American Bittern	5/23/2008	2
American Bittern	5/7/2008	2
American Bittern	8/21/2007	3
Least Bittern	5/23/2008	1
Least Bittern	7/11/2004	1
Least Bittern	7/11/2004	2
Least Bittern	7/11/2004	2	OB-O
Least Bittern	7/11/2004	3	PO-X
Least Bittern	5/25/1998	1
Black-crowned Night-Heron	4/30/2012	1		Adult
Black-crowned Night-Heron	4/24/2011	2
Black-crowned Night-Heron	5/14/2009	2
Black-crowned Night-Heron	5/13/2003	1
Northern Harrier	9/4/2022	1		CHECKLIST
Northern Harrier	4/9/2022	1		CHECKLIST
Northern Harrier	4/6/2011		PR-P
Northern Harrier	3/26/2010		PO-H
Northern Harrier	4/10/2009		PO-H
Northern Harrier	4/9/2009		OB-O
Northern Harrier	10/12/2008	5
Northern Harrier	4/12/2008	4
Northern Harrier	2/2/2008	3		2 juv. 1 male
Northern Harrier	1/15/2008	4		All males
Northern Harrier	1/29/2007	5		3 ad. male 2ad. f.
Northern Harrier	1/12/2007	9
Northern Harrier	10/4/2006	8
Bald Eagle	5/6/2023	1		CHECKLIST
Bald Eagle	4/22/2023	3		CHECKLIST
Bald Eagle	3/31/2023	1		CHECKLIST
Bald Eagle	3/6/2023	2		CHECKLIST
Bald Eagle	3/13/2022	1		CHECKLIST
Bald Eagle	2/19/2022	1		Thane Dinsdale (eBird)
Bald Eagle	6/2/2012		OB-O
Bald Eagle	5/5/2012		OB-O
Bald Eagle	3/16/2012		CO-ON
Bald Eagle	5/19/2011		CO-NY
Bald Eagle	3/6/2011	88
Bald Eagle	2/17/2011	51
Bald Eagle	2/1/2009	63
Bald Eagle	12/8/2007	6
Bald Eagle	4/21/2007	1		nest riverton south unit
Bald Eagle	11/25/2002	5
Bald Eagle	12/19/2001	9
Bald Eagle	11/29/2000	10
Bald Eagle	12/15/1999	7
Bald Eagle	11/12/1998	6
Red-shouldered Hawk	10/27/2006	1
Barn Owl	7/22/2009		PR-T
Barn Owl	6/3/2000	1
Long-eared Owl	3/18/2010	1		Roadkill
Long-eared Owl	2/8/2010	1
Long-eared Owl	11/25/2008	5		Roosting on a log on the ground in a willow grove.
Long-eared Owl	3/1/2008	1
Short-eared Owl	4/18/2012		PR-T
Short-eared Owl	4/6/2011		PO-H
Short-eared Owl	7/11/2009		PO-H
Short-eared Owl	3/13/2009	1		jenson tract
Short-eared Owl	2/19/2009	1
Short-eared Owl	12/12/2008	2
Short-eared Owl	2/13/2008	1
Short-eared Owl	4/12/2007	2
Short-eared Owl	1/28/2007	1
Pileated Woodpecker	4/8/2007	1
Peregrine Falcon	5/5/2011	1
Peregrine Falcon	4/28/2011	1		1 adult
Peregrine Falcon	4/13/2011	1
Peregrine Falcon	5/7/2009	1		Jon Dunn
Peregrine Falcon	5/15/2008	1
Peregrine Falcon	5/6/2008	1
Peregrine Falcon	5/13/2006	1
Peregrine Falcon	4/22/2006	1
Peregrine Falcon	4/30/2005	2
White-eyed Vireo	8/7/2012		PR-A
Bell's Vireo	7/23/2022	2		CHECKLIST
Bell's Vireo	6/6/2022	2		CHECKLIST
Bell's Vireo	6/3/2022	1		CHECKLIST
Bell's Vireo	6/16/2019	4		CHECKLIST
Bell's Vireo	6/23/2018	5		CHECKLIST
Bell's Vireo	8/22/2017	6		Singing loudly
Bell's Vireo	6/24/2017	1		CHECKLIST
Bell's Vireo	5/17/2014	1
Bell's Vireo	9/10/2013	2
Bell's Vireo	9/9/2013	1
Bell's Vireo	8/1/2013	5
Bell's Vireo	8/7/2012		CO-AY
Bell's Vireo	8/7/2012		PR-A
Bell's Vireo	6/13/2012		PO-X
Bell's Vireo	6/2/2012		PO-X
Bell's Vireo	5/5/2012		PO-X
Bell's Vireo	5/20/2011	6
Bell's Vireo	6/24/2009		PO-X
Bell's Vireo	6/5/2009		PO-X
Bell's Vireo	5/19/2009	2
Bell's Vireo	5/16/2009		PO-X
Bell's Vireo	7/4/2008		PR-M
Bell's Vireo	6/25/2008		PO-H
Bell's Vireo	6/16/2008		PO-X
Bell's Vireo	7/14/2005	1
Bell's Vireo	7/11/2004	1
Bell's Vireo	7/11/2004	1	OB-O
Bell's Vireo	7/11/2004	1	PO-X
Loggerhead Shrike	2/27/2016	1
Loggerhead Shrike	8/7/2012		CO-FL
Loggerhead Shrike	7/30/2012		PO-H
Loggerhead Shrike	12/3/2011	1
Loggerhead Shrike	7/14/2011		PO-H
Loggerhead Shrike	1/29/2011	1
Loggerhead Shrike	3/21/2010	1
Loggerhead Shrike	11/28/2009	1
Loggerhead Shrike	4/18/2009	1
Loggerhead Shrike	6/16/2008		PO-H
Loggerhead Shrike	4/2/2008	1
Loggerhead Shrike	4/8/2007	1
Loggerhead Shrike	4/8/2007	2
Loggerhead Shrike	4/3/2005	1
Wood Thrush	8/7/2012		PR-A
Wood Thrush	5/26/2008		PR-T
Wood Thrush	5/28/2007	1
Wood Thrush	7/11/2004	1
Wood Thrush	7/11/2004	1	OB-O
Wood Thrush	7/11/2004	2
Wood Thrush	7/11/2004	2	PO-X
Grasshopper Sparrow	7/30/2012		CO-AY
Grasshopper Sparrow	6/13/2012		PO-X
Grasshopper Sparrow	7/14/2011		PR-M
Grasshopper Sparrow	7/21/2009		PO-X
Grasshopper Sparrow	7/11/2009		PR-M
Grasshopper Sparrow	6/24/2009		PO-X
Grasshopper Sparrow	6/24/2009		PR-M
Grasshopper Sparrow	6/5/2009		PO-X
Grasshopper Sparrow	6/26/2008		CO-FL
Grasshopper Sparrow	6/25/2008		CO-NY
Grasshopper Sparrow	6/16/2008		CO-NE
Grasshopper Sparrow	6/16/2008		PR-M
Grasshopper Sparrow	5/22/1998	2
Henslow's Sparrow	7/30/2012		PR-M
Henslow's Sparrow	4/18/2012	1
Henslow's Sparrow	7/14/2011		PR-M
Henslow's Sparrow	7/11/2009		PR-A
Henslow's Sparrow	6/26/2008		CO-NE
Henslow's Sparrow	6/25/2008		CO-NY
Henslow's Sparrow	6/16/2008		PO-X
Yellow-breasted Chat	8/7/2012		PR-A
Yellow-breasted Chat	7/4/2008		PO-X
Yellow-breasted Chat	7/4/2008	1		Singing male; photos
Bobolink	7/30/2012		CO-AY
Bobolink	5/30/2012		PO-X
Bobolink	7/14/2011		PR-P
Bobolink	5/1/2011	1		Male
Bobolink	7/21/2009		PR-M
Bobolink	7/11/2009		PR-M
Bobolink	5/9/2009	2
Bobolink	6/26/2008		PR-A
Bobolink	6/25/2008		CO-NE
Bobolink	6/16/2008		PR-M
Bobolink	8/12/2007	86
Bobolink	5/3/2007	5

Species Concentrations

Species Name/Group	Date	Number	Comments
American Coot	10/18/2008	10,000
American Coot	4/12/2007	2,500
American White Pelican	3/25/2011	2,000
Migrating Eagles	3/6/2011	88
Shorebirds	5/24/2011	948
Shorebirds	5/22/2011	840
Shorebirds	5/11/2011	1,153
Shorebirds	5/5/2011	1,188
Shorebirds	4/30/2011	1,286
Shorebirds	4/20/2011	803
Shorebirds	5/13/2010	3,040
Shorebirds	5/28/2009	1,728
Shorebirds	5/7/2009	934
Shorebirds	5/18/2008	627
Shorebirds	5/13/2006	4,460
Shorebirds	4/22/2006	560
Shorebirds	5/6/2005	9,276
Shorebirds	4/30/2005	2,492
Shorebirds	5/13/2002	500
Single-species	10/29/2003	4,000
Single-species	2/22/2002	10,000	Snow Goose
Waterfowl	2/20/2016	403,636
Waterfowl	3/4/2012	67,000
Waterfowl	3/2/2012	750,000
Waterfowl	1/22/2012	5,206
Waterfowl	4/10/2011	2,500
Waterfowl	3/12/2011	22,370
Waterfowl	3/5/2011	98,638
Waterfowl	4/3/2010	2,432
Waterfowl	3/22/2010	1,000
Waterfowl	12/3/2009	40,000
Waterfowl	2/19/2009	10,000
Waterfowl	12/6/2008	15,000
Waterfowl	11/21/2008	40,000
Waterfowl	10/12/2008	11,600
Waterfowl	3/18/2008	10,000
Waterfowl	3/16/2008	30,003
Waterfowl	3/15/2008	20,000
Waterfowl	3/11/2008	10,002
Waterfowl	3/1/2008	105,000
Waterfowl	4/8/2007	5,166
Waterfowl	3/14/2007	76,716
Waterfowl	4/9/2006	1,586
Waterfowl	3/4/2006	8,600
Waterfowl	10/29/2003	21,350
Waterfowl	11/25/2002	60,000
Waterfowl	12/19/2001	120,000
Waterfowl	11/29/2000	110,000
Waterfowl	12/15/1999	76,000
Waterfowl	11/12/1998	40,340