Birding spots · Iowa

Best Birding Spots in Dubuque County, Iowa

John Deere Marsh leads Dubuque County's birding spots with 237 species reported, best in spring. 27 spots in the county have enough data to rank.

Species counts are birds reported at least three times in that season at that spot, 2016–2025. Busy spots list more species simply because more people look, so compare the checklist counts. Spot names come from public map data and hotspot listings.

Spot	Species	Checklists	Winter	Spring	Summer	Fall
John Deere Marsh	237	1,952	83	214	130	166
Mines of Spain State Recreation Area	173	754	59	152	101	121
Eagle Point Park	138	380	34	117	80	102
Peru Bottoms	122	154	23	107	57	71
Mines of Spain State Recreation Area (Catfish Creek)	112	244	2	92	60	87
Mud Lake Park	106	113	24	86	54	59
Four Mounds Park	105	157	20	73	60	65
Roosevelt Park	104	68	12	90	12	48
AY McDonald Park	103	311	38	45	56	52
Swiss Valley Nature Preserve	102	254	35	83	60	53
Mines of Spain State Recreation Area (south)	100	119	16	65	57	52
Mines of Spain State Recreation Area (Horseshoe Bluff)	92	135	14	77	47	50
Eagle Point Park (north)	90	215	41	40	41	23
Mines of Spain State Recreation Area (Granger Creek)	84	57	0	81	16	20
Miller Riverview Park	82	99	21	60	44	36
Bee Branch Area	77	229	24	34	36	47
Mines of Spain State Recreation Area (northwest)	75	67	6	63	41	20
Heritage Pond	73	64	20	58	29	36
Mines of Spain State Recration Area	70	96	19	51	37	27
Marshall Park	67	72	17	34	22	36
Ringneck Ridge Wildlife Area	64	55	19	32	40	14
Lake Peosta Channel	49	69	0	0	43	20
McAleece Park and Recreation Complex	48	96	16	11	23	34
Dubugue Harbor	46	121	15	26	25	25
Bee Branch Area (Lake Peosta Channel)	45	88	25	26	0	22
Birding spot near Dubuque	85	167	29	61	34	56
Birding spot near Bernard	53	96	9	36	26	13