Birding spots · Missouri

Best Birding Spots in St. Charles County, Missouri

Alton Slough leads St. Charles County's birding spots with 280 species reported, best in spring. 44 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
Alton Slough	280	7,626	130	242	171	233
August A Busch Refuge Lake	210	1,945	97	175	103	169
Marais Temps Clair Conservation Area	208	680	63	174	116	133
Ellis Island	204	791	89	157	92	133
August A Busch Lake Number 9	173	1,115	64	160	94	98
Kraut Run Lake	163	392	56	104	69	117
Edward "ted" and Pat Jones-confluence Point State Park	159	425	61	93	100	87
Alton Slough (southeast)	155	392	49	102	58	103
Weldon Spring Conservation Area	150	1,281	30	146	92	72
Lakeside 370 Park (U/C)	137	374	69	76	73	81
Usace-Cora Island	136	282	58	87	68	77
Brommelsieck Lake	131	325	59	107	77	71
Weldon Spring Hollow Natural Area	131	105	37	116	66	50
Jack Gettemeyer Park	127	287	46	103	63	72
Quail Ridge Park	121	260	33	108	50	60
Greenfelder Lake	112	102	33	100	37	40
Klondike Lake	110	201	38	80	65	46
August A Busch Lake Number 10	101	255	9	73	68	48
Katy Trail	96	146	32	68	46	36
Pallardy Lake	85	74	32	62	51	0
Point Dusable Park	79	53	0	40	33	50
Smelzer Lake	76	64	32	31	31	19
August A Busch Lake Number Thirty-One	75	54	23	41	21	18
Bangert (Louis H.) Memorial Wildlife Area	74	52	29	58	17	28
Frontier Park	66	85	11	46	38	22
Portage Des Sioux	59	52	44	15	8	25
Weldon Spring Conservation Area (Toonerville)	55	50	0	43	38	6
Stonemoor	38	139	38	0	0	0
Birding spot near West Alton	178	719	59	125	102	86
Birding spot near West Alton (Mobile Island)	152	498	55	71	111	69
Birding spot near West Alton (McPikes Island (historical))	148	684	58	113	53	63
Birding spot near Defiance	140	646	41	115	80	56
Birding spot near Weldon Spring Heights	130	285	44	122	42	62
Birding spot near Flint Hill	99	119	27	65	53	59
Birding spot near Dardenne Prairie	86	119	6	68	52	42
Birding spot near St. Paul	83	51	13	50	40	11
Birding spot near Portage Des Sioux	69	118	1	22	49	32
Birding spot near St. Charles (southeast)	64	220	24	47	31	25
Birding spot near Dardenne Prairie (northwest)	61	58	18	31	36	14
Birding spot near Weldon Spring	59	78	27	37	40	23
Birding spot near Portage Des Sioux (Wilkie)	55	108	0	17	45	22
Birding spot near Hazelwood	54	58	23	13	17	5
Birding spot near West Alton (northwest)	53	54	19	32	12	8
Birding spot near St. Charles	51	251	48	26	0	21