Birding spots · Colorado

Best Birding Spots in Weld County, Colorado

Calkins Lake leads Weld County's birding spots with 211 species reported, best in fall. 65 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
Calkins Lake	211	2,363	96	156	105	165
Crow Valley Park	191	2,041	30	174	122	126
St. Vrain State Park	156	1,146	74	120	82	98
Collins	152	990	72	123	92	101
Windsor Reservoir	143	218	54	78	83	97
Poudre Ponds Rec Fishery	133	214	60	87	54	76
Windsor Lake	131	739	78	95	53	78
Loloff Reservoir	131	672	26	118	87	75
Behrens Reservoir	129	430	36	114	78	58
Colorado State Land Board State Land Board (north 2)	126	522	1	105	51	83
Banner Lakes State Wildlife Area	126	175	41	83	77	46
Ireland Reservoir Number Five	115	168	27	77	70	67
Crom Lake	111	210	0	103	24	34
Adams and Bunker Reservoir Number 1	107	144	14	77	57	27
Carbon Valley Recreation District Regional (Metro District) Parks	106	994	76	51	34	67
Prospect Reservoir	106	74	40	70	41	59
Black Hollow Reservoir	105	115	26	76	33	43
Cozzens Lake	105	113	9	93	41	39
Woods Lake	102	190	47	72	46	64
Pelican Lakes Golf Course	100	266	38	82	31	51
Baxter Lake	100	193	21	70	71	52
Peschel	91	145	48	62	56	49
Glenmere Park	82	342	33	69	28	51
Coal Creek Open Space (Grandview)	82	182	36	52	51	39
Coal Creek & Vista Point Open Space	80	208	41	47	52	36
Poudre Learning Center	80	108	34	63	43	28
Colorado State Land Board State Land Board (north)	79	705	1	57	59	29
Section 35 Reservoir	78	179	43	52	35	52
Central Plains Experimental Range	75	162	8	49	44	48
Clark Lake	72	51	0	64	18	15
Briggsdale	69	364	5	52	40	15
Poudre River Ranch Nature Area	69	90	29	39	37	33
Pawnee National Grassland (east)	62	215	1	44	47	16
Ide and Starbird Reservoir Number 2	57	60	2	36	30	35
Pawnee National Grassland	56	381	1	34	42	19
Pawnee National Grassland (northwest)	51	183	1	15	48	5
Pawnee National Grassland (Crow Valley Park)	50	54	3	33	20	9
Pawnee National Grassland (north)	48	257	2	31	42	5
Eastman Park	45	62	6	32	28	15
Coal Creek Open Space (Old Town)	42	76	18	24	32	27
Sanborn Park	41	68	5	26	6	17
Pawnee National Grassland (west 2)	30	56	0	11	24	0
Colorado State Land Board State Land Board (north 3)	28	95	0	11	27	6
Pawnee National Grassland (west 3)	28	50	0	26	8	1
Pawnee National Grassland (west)	23	92	0	10	16	3
Birding spot near La Salle	152	1,344	59	139	101	74
Birding spot near La Salle (west)	151	804	34	141	83	80
Birding spot near Firestone	126	498	58	110	63	59
Birding spot near Firestone (southwest)	121	226	56	88	52	66
Birding spot near Kersey	111	586	13	104	73	54