Birding spots · Wisconsin

Best Birding Spots in Fond du Lac County, Wisconsin

Mauthe Lake leads Fond du Lac County's birding spots with 180 species reported, best in spring. 38 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
Mauthe Lake	180	702	29	162	94	76
Horicon National Wildlife Refuge (northeast)	157	1,663	20	137	123	76
Lakeside Park West	157	1,062	34	148	61	108
Mullet Marsh 15 Reservoir	154	457	34	136	75	70
Kettle Moraine State Forest-Northern Unit-Iansr	136	444	17	129	87	56
Lakeside Park	134	853	57	110	52	70
Eldorado Wildlife Area (east)	129	75	1	94	81	49
Horicon National Wildlife Refuge (northeast)	121	289	1	90	75	48
McCoullough Marsh	120	584	30	108	61	50
Eldorado Wildlife Area	117	81	1	84	69	18
Highway 45 Wayside	115	194	19	109	41	24
Long Lake (Chinatown)	109	111	12	86	53	28
Kettle Moraine State Forest-Northern Unit-Iansr (New Prospect)	105	344	4	84	68	30
Spruce Lake	105	225	7	90	58	29
Forest Lake	103	148	5	100	50	20
Long Lake	97	117	16	74	49	46
Auburn Lake	91	110	14	80	33	7
Saint Cloud State Wildlife Areas	86	90	24	73	9	23
Southwoods Conservancy	84	152	13	79	25	17
Lakeside Park (Fond du Lac River)	83	654	52	62	19	45
Gottfried Arboretum	79	133	18	63	44	26
Kiekhaefer Park	78	54	10	56	30	24
Calumet Harbor Rough Fish Station	76	105	17	66	27	30
Mauthe Lake (Mallard Hole Lake)	73	90	8	63	31	14
Kettle Moraine State Forest-Northern Unit-Iansr (southwest)	71	77	8	51	37	7
Forest Lake (New Prospect)	66	125	1	63	41	0
Wolf Lake	49	88	7	42	0	17
Birding spot near Brothertown	142	308	23	137	74	77
Birding spot near Fond du Lac	135	428	0	132	25	80
Birding spot near Fond du Lac (southeast 2)	106	118	11	102	32	39
Birding spot near Waupun	103	245	5	90	60	25
Birding spot near Oakfield (Hamilton (historical))	83	60	6	79	28	5
Birding spot near Fond du Lac (southeast 3)	81	107	17	68	11	34
Birding spot near St. Peter	80	253	8	73	30	9
Birding spot near Oakfield	71	62	0	54	45	16
Birding spot near Fond du Lac (southeast)	55	123	0	41	30	20
Birding spot near Brothertown (east)	48	60	0	33	33	16
Birding spot near Eden	38	50	0	27	22	0