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Since May 2002 was such a phenomenal spring migration month with 14 more bird species seen than any previous May, it is not surprising that May 2003 seemed as if it was a let down by comparison. However, the 211 bird species reported made for a very respectable May total. This was aided by the Indian Peaks Spring Count (IP) and the Boulder County Audubon Birdathon. The Birdathon team consisting of Ted Floyd, Bill Schmoker, Richard Trinkner and Chris Wood are to be congratulated on managing to observe 165 bird species within Boulder County on a single day; this broke all previous records.
Two new species were added to the wildlife inventory. The arrival of the first Eurasian Collared Dove was certainly not unexpected, and we expect to see many more reports of this expanding species. Purple Martin breeds on the western slope, but are rare east of the continental divide. There were few birds reported that had not been reported in 2002; those that were included Flammulated Owl, Common Barn Owl and Northern Saw-whet Owl (all last seen in 2001), Gray-cheeked Thrush (last seen in 1999) and Scarlet Tanager(1997).
Many of the shorebirds reported in April did not linger on into May. Ducks were becoming much harder to find, as were grebes. Our wintering hawks had entirely disappeared. Boulder Creek was still a good place to look for warblers, and unusual migrants, although some observers described the birding there as very slow. The weather was typically variable with one day of wet, heavy snow (May 10) and several with heavy rain (May 15,16,18,19). As we have noted in the past, the bad weather days were usually the best for birders with many birds grounded by the weather. Perhaps, the concluding comment should be that this was about as typical as May can be for birders. TOP
| SPECIES | May 2003 DATE(S) | AREA(S) | NO. | OBSERVER |
| Common Loon | 17 | 24 | 1 | AB,BK |
| Pied-billed Grebe | 17,19 | 22,26 | 2 | … |
| Eared Grebe | 7*,19 | 8 | 1 | JT* |
| Western Grebe | 5,10,15,17,19 | 14,23-25,31 | 31 | … |
| Clark’s Grebe | 4,17-19 | 18,20,23,24 | 4 | … |
| American White Pelican | 1,10,17,19 | 10,19,30,37 | 89 | … |
| Double-crested Cormorant | 10,15,17,19 | 19,23,24 | 8 | … |
| Great Blue Heron | a.m. | pl.,IP | 10 | ... |
| Great Egret | 19 | ? | 1 | TF et al. |
| Cattle Egret | 19 | 5 | 1 | TF et al. |
| Black-crowned Night-Heron | 5*,10,17,19 | 4,23,24,31 | 9 | AB* |
| White-faced Ibis | 1-19 | pl.,IP | 96 | … |
| Turkey Vulture | a.m. | pl.,mt. | 18 | … |
| Snow Goose | 1 | 37 | 1 | RED |
| Canada Goose | Present | ... | ... | ... |
| Wood Duck | 16-19 | 4,30,33 | 4 | … |
| Gadwall | 5,10,17,19 | 8,23 | 4 | … |
| American Wigeon | 17 | 13 | 1 | AB,BK |
| Mallard | Present | ... | ... | ... |
| Blue-winged Teal | 5,6,12,17,19 | pl,46 | 19 | … |
| Cinnamon Teal | 5,10,12,17,19 | 12,23,31 | 8 | … |
| Northern Shoveler | 4,7,15,17,19 | 8,23 | 23 | … |
| Green-winged Teal | a.m. | 12,23,31,46 | 7 | ... |
| Redhead | 17,19 | 12 | 4 | ... |
| Ring-necked Duck | 17 | 18,46 | 6 | BK,AB |
| Greater Scaup | 17 | 8 | 1 | BK,AB |
| Lesser Scaup | 4,17,19 | 8,12,46 | 10 | … |
| Bufflehead | 4,17 | 4,8,24 | 17 | ... |
| Hooded Merganser | 16 | 30A | 1 | BK |
| Common Merganser | 3,18,19,24 | 33,IP | 8 | … |
| Ruddy Duck | 4,17,19 | 8 | 4 | … |
| Osprey | 3,17-19 | 19N,24N,39,IP | 12 | … |
| Northern Harrier | 19 | ? | 1 | TF et al. |
| Sharp-shinned Hawk | 3,10 | 24,30A,32,IP | 6 | … |
| Cooper's Hawk | 1,3,4,6,19 | 31,36,37,39,IP | 8 | … |
| Northern Goshawk | 3 | 39,IP | 2 | … |
| Broad-winged Hawk | 21* | 33 | 1 | CW |
| Swainson’s Hawk | 2,10,17,19 | 9,24,32 | 3 | … |
| Red-tailed Hawk | a.m. | thruout | 10 | … |
| Golden Eagle | 1,10,17,19,24 | 33,34,37,42 | 4 | … |
| American Kestrel | a.m. | pl.,ft.,mt. | 10 | … |
| Peregrine Falcon | 2,4,10 | 18,23 | 2 | … |
| Prairie Falcon | 19 | ? | 1 | TF et al. |
| Ring-necked Pheasant | 19 | ? | 1 | TF et al. |
| Blue Grouse | 3 | IP | 2 | … |
| Wild Turkey | a.m. | 36,37 | 5 | … |
| Virginia Rail | 13*,17,19 | 22,26 | 2 | AB* |
| Sora | 13*,17,19 | 22,26 | 3 | AB* |
| American Coot | Present | … | … | … |
| Semipalmated Plover | 2,4,7,10 | 12,23 | 72 | … |
| Killdeer | a.m. | pl.,IP | 13 | … |
| American Avocet | a.m. | 8,12,23,24 | 15 | … |
| Greater Yellowlegs | 7 | 8 | 2 | JT |
| Lesser Yellowlegs | 19 | ? | 1 | TF et al. |
| Solitary Sandpiper | 2,3,10 | 23,24,39 | 6 | … |
| Spotted Sandpiper | a.m. | 8,23,24,31 | 14 | … |
| Long-billed Curlew | 17* | 19 | 1 | BK,AB |
| Western Sandpiper | 5 | 23 | 1 | AB |
| Least Sandpiper | 2,7,18 | 12,23,24 | 10 | … |
| White-rumped Sandpiper | 19* | ? | 1 | TF et al. |
| Stilt Sandpiper | 7*,19 | 8 | 1 | PG*,EZ* |
| Long-billed Dowitcher | 2,4,7 | 8,12,23 | 10 | … |
| Wilson’s Snipe | a.m. | pl.,IP | 17 | ... |
| Wilson’s Phalarope | a.m. | 8,12,23,24 | 37 | … |
| Red-necked Phalarope | 16*,19 | 23 | 1 | MBo* |
| Franklin’s Gull | 5,17,19 | 4,23,U | 6 | … |
| Ring-billed Gull | 17,19 | 4,10 | 41 | ... |
| California Gull | 17,19 | 4 | 1 | … |
| Forster’s Tern | 17*,19 | 10 | 1 | BK*,AB* |
| Rock Dove | Present | … | … | … |
| Band-tailed Pigeon | 3*,17,19 | 39,44,IP | 24 | AB*,BK* |
| Eurasian Collared Dove | 7* | 32 | 1 | BT* |
| Mourning Dove | a.m. | pl.,ft.,mt. | 52 | … |
| Flammulated Owl | 19* | 36 | 1 | TF et al. |
| Common Barn Owl | 19* | 8 | 1 | TF et al. |
| Eastern Screech Owl | 19 | 23 | 1 | TF et al. |
| Great Horned Owl | 17,19 | 4,23 | 2 | ... |
| Burrowing Owl | 17,19 | 29 | 1 | … |
| Northern Saw-whet Owl | 19* | 36 | 1 | TF et al. |
| Common Nighthawk | 30* | 31 | 1 | AB |
| Common Poorwill | 19 | 36 | 7 | TF et al. |
| Chimney Swift | 1,16,19,24 | 30,33 | 4 | … |
| White-throated Swift | a.m. | 32,33,36,IP | 47 | … |
| Broad-tailed Hummingbird | a.m. | thruout | 86 | … |
| Belted Kingfisher | 1,3,10,17,19 | pl.,IP | 9 | … |
| Lewis’ Woodpecker | 22*,24,25 | 33,34 | 5 | DJW* |
| Williamson’s Sapsucker | 3*,17,19 | 39,IP | 10 | AB*,BK* |
| Red-naped Sapsucker | 3,10,17,19 | 32,39,IP | 20 | … |
| Downy Woodpecker | a.m. | pl.,ft.,mt. | 9 | ... |
| Hairy Woodpecker | a.m. | 34,37,39,42,IP | 15 | … |
| Am. Three-toed Woodpecker | 3,24 | 46,IP | 3 | … |
| Northern (Red-shafted) Flicker | Present | ... | ... | ... |
| Olive-sided Flycatcher | 16*,19 | 30 | 1 | TF* |
| Western Wood-Pewee | 9*-on | 25,33,34,36,37 | 10 | DJW* |
| Willow Flycatcher | 11* | 30 | 1 | AB |
| Least Flycatcher | 12*,16,19 | 30,B | 3 | AS* |
| Hammond’s Flycatcher | 12*,19,24 | 30,46,B | 3 | AS* |
| Dusky Flycatcher | 2*-on | throughout | 14 | PG* |
| Cordilleran Flycatcher | 13,19,24,26,31 | 30,33,34,36 | 8 | … |
| Say’s Phoebe | a.m. | 17,20,24,26,37 | 8 | … |
| Ash-throated Flycatcher | 18* | 33 | 1 | TF,BSc |
| Western Kingbird | 15*,17,19 | 8,14 | 4 | AB* |
| Eastern Kingbird | 17*,19 | 17 | 1 | AB*,BK* |
| Loggerhead Shrike | 1,4,17,19 | 17,26,37 | 4 | … |
| Plumbeous Vireo | 11*-on | 25,30,33,36 | 5 | AB* |
| Warbling Vireo | 12*-on | 25,30,36 | 15 | Sand MP* |
| Gray Jay | 3 | 39,IP | 8 | … |
| Steller’s Jay | Present | ... | ... | ... |
| Blue Jay | a.m. | pl.,ft.,mt. | 15 | … |
| Western Scrub-Jay | a.m. | 15,31-33,36 | 7 | … |
| Pinyon Jay | 1,7,22,24 | 34,37 | 7 | … |
| Black-billed Magpie | Present | ... | ... | ... |
| American Crow | a.m. | thruout | 96 | ... |
| Common Raven | a.m. | thruout | 33 | ... |
| Horned Lark | 3,16,17,19 | 16,26,IP | 8 | … |
| Purple Martin | 4* | 12 | 1 | CW |
| Tree Swallow | a.m. | pl.,ft.,mt. | 338 | … |
| Violet-green Swallow | a.m. | 30,32,34,37,IP | 80 | … |
| N. Rough-winged Swallow | 17-19 | 33 | 2 | … |
| Bank Swallow | 15,17,19 | 23,25 | 2 | … |
| Cliff Swallow | a.m. | pl.,ft.,mt. | 437 | … |
| Barn Swallow | a.m. | pl.,ft.,mt. | 41 | … |
| Black-capped Chickadee | Present | ... | ... | ... |
| Mountain Chickadee | Present | ... | ... | ... |
| Bushtit | 18,19 | 33 | 2 | TF,BSc |
| Red-breasted Nuthatch | a.m. | ft.,mt.,alp. | 26 | … |
| White-breasted Nuthatch | a.m. | pl.,ft.,mt. | 22 | ... |
| Pygmy Nuthatch | a.m. | ft.,mt. | 46 | … |
| Brown Creeper | 3,19,24,31 | 34,36,IP | 19 | ... |
| Rock Wren | a.m. | pl.,IP | 9 | … |
| Canyon Wren | 19,24,31 | 33N,36 | 5 | … |
| House Wren | a.m. | pl.,ft.,mt. | 53 | … |
| Marsh Wren | 19 | 22 | 1 | TF et al. |
| American Dipper | 3,16,17,19 | 30N,38,40,IP | 10 | … |
| Golden-crowned Kinglet | 3,19 | IP | 37 | … |
| Ruby-crowned Kinglet | a.m. | ft.,mt.,alp. | 284 | … |
| Blue-gray Gnatcatcher | a.m. | pl.,ft. | 42 | … |
| Eastern Bluebird | 4 | 17 | 2 | ABe |
| Western Bluebird | a.m. | 32,37,40 | 6 | … |
| Mountain Bluebird | a.m. | thruout | 33 | … |
| Townsend’s Solitaire | 3,17,19,31 | 36,39,42 | 41 | … |
| Veery | 19* | 36 | 1 | TF et al. |
| Gray-cheeked Thrush | 12* | 30A | 1 | AS |
| Swainson’s Thrush | 12*,19,31 | 30,36 | 18 | Sand MP*,AS* |
| Hermit Thrush | 2-on | 13,30,32,36,46 | 19 | …` |
| American Robin | Present | ... | ... | ... |
| Gray Catbird | 17*,19,24,31 | 33,36 | 4 | AB*,BK* |
| Brown Thrasher | 3*,18 | 33,IP | 3 | IP* |
| European Starling | Present | ... | ... | ... |
| American Pipit | a.m. | 23,39,46,IP | 283 | … |
| Cedar Waxwing | 16,24,31 | 30,31,33 | 8 | … |
| Tennessee Warbler | 7*,19,22 | 24,32 | 2 | PPl*,EZ* |
| Orange-crowned Warbler | 1-22 | 25,30,3236 | 13 | … |
| Nashville Warbler | 2* | 18 | 1 | CW |
| Virginia’s Warbler | a.m. | 26,30,32,33,36 | 18 | … |
| Northern Parula | 16*,18 | 33,36 | 2 | PG* |
| Yellow Warbler | 4*-on | pl.,ft. | 27 | CW* |
| Chestnut-sided Warbler | 19* | ? | 1 | TF et al. |
| Magnolia Warbler | 10*,11 | 30A | 1 | PG*,CH* |
| Yellow-rumped Warbler | a.m. | thruout | 165 | … |
| Yellow-rumped (Audubon’s) Warbler | a.m. | pl.,ft.,mt. | 52 | … |
| Yellow-rumped (Myrtle) Warbler | 1-10 | 23,24,30-32 | 10 | … |
| Black-throated Gray Warbler | 4,14,19 | 32,36 | 2 | … |
| Blackpoll Warbler | 13*,21 | 30,33 | 2 | PG* |
| Black-and-white Warbler | 21*,31 | 25,36 | 2 | JT* |
| American Redstart | 14*,19,20,31 | 30A,36 | 2 | PHa* |
| Northern Waterthrush | 7*,10,12 | 21,30,32,B | 4 | PPl*,EZ* |
| MacGillivray’s Warbler | 10*-on | 30,32,33,36,39 | 5 | AB* |
| Common Yellowthroat | a.m. | pl.,ft. | 12 | … |
| Hooded Warbler | 2*,12 | 30,B | 2 | AC* |
| Wilson’s Warbler | 12*,14,16,19,24 | 26,30,46 | 28 | AS*,LAG* |
| Yellow-breasted Chat | 2*-on | 26,32,33,36 | 12 | PG* |
| Summer Tanager | 19* | 33 | 1 | TF et al. |
| Scarlet Tanager | 16* | 30 | 1 | TF |
| Western Tanager | 8*-on | pl.,ft.,mt. | 102 | S and MP* |
| Green-tailed Towhee | 1*-on | pl.,ft.,mt. | 12 | AB* |
| Spotted Towhee | a.m. | pl.,ft.,mt. | 42 | … |
| Chipping Sparrow | a.m. | thruout | 302 | … |
| Clay-colored Sparrow | 4* | 17 | 2 | ABe |
| Brewer’s Sparrow | 7*,10,19 | 8,32 | 3 | JT* |
| Vesper Sparrow | a.m. | pl.,IP | 41 | … |
| Lark Sparrow | 2*,4,17,19,24 | 17,18,37 | 5 | CW* |
| Savannah Sparrow | 7,17,19 | 8,18 | 5 | … |
| Fox Sparrow | 3*,17,19,24 | 46,IP | 16 | AB*,BK* |
| Song Sparrow | a.m. | pl.,ft.,mt. | 37 | ... |
| Lincoln’s Sparrow | 3,6,19,24 | 31,46,IP | 11 | … |
| White-throated Sparrow | 4* | 23 | 1 | PPl |
| White-crowned Sparrow | a.m. | pl.,mt. | 40 | ... |
| Dark-eyed Junco | a.m. | mt.,alp. | 325 | ... |
| Oregon Junco | 3 | IP | 1 | … |
| Pink-sided Junco | 3 | IP | 1 | … |
| Gray-headed Junco | Present | … | … | … |
| Rose-breasted Grosbeak | 19* | 32 | 1 | TF et al. |
| Black-headed Grosbeak | 4*-on | pl.,ft.,mt. | 25 | JT* |
| Blue Grosbeak | 17*,19 | 32 | 1 | AB*,BK* |
| Lazuli Bunting | 4*-on | 32-34,36 | 11 | CW* |
| Indigo Bunting | 31* | 36 | 3 | LAG |
| Bobolink | 11*,13,17-19,23 | 18,25 | 4 | LAG* |
| Red-winged Blackbird | Present | ... | ... | ... |
| Western Meadowlark | Present | ... | ... | ... |
| Yellow-headed Blackbird | a.m. | 8,24,31 | 35 | … |
| Brewer’s Blackbird | a.m. | pl.,ft.,mt. | 61 | ... |
| Great-tailed Grackle | 7,11,17-19 | 8,13 | 5 | … |
| Common Grackle | a.m. | pl.,ft.,mt. | 128 | … |
| Brown-headed Cowbird | a.m. | thruout | 105 | … |
| Bullock’s Oriole | 7*-on | pl.,37 | 14 | AB*,EZ* |
| Pine Grosbeak | 3,19,24 | 39,46 | 7 | … |
| Cassin’s Finch | a.m. | 34,36,37,39,IP | 18 | … |
| House Finch | Present | ... | ... | ... |
| Red Crossbill | a.m. | 34,36,37,46 | 65 | … |
| Pine Siskin | a.m. | thruout | 102 | … |
| Lesser Goldfinch | 1*-on | 31-34,37 | 9 | … |
| American Goldfinch | a.m. | pl.,ft.,mt. | 62 | ... |
| Evening Grosbeak | 3* | IP | 1 | … |
| House Sparrow | Present | ... | ... | ... |
| SPECIES | May 2003 DATE(S) | AREA(S) | NO. | OBSERVER |
| Raccoon | 31 | 30 | 1 | AB |
| Red Fox | 15 | 8 | 1 | NP |
| Coyote | 14 | 25 | 1 | SJ |
| Black-tailed Prairie-Dog | Present | ... | ... | ... |
| Fox Squirrel | Present | ... | ... | ... |
| Muskrat | 14 | 23 | 1 | C and MB |