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Fall 1999 Data From
Thunder Cape Bird Observatory

Red-eyed Vireo by John Woodcock

The twenty most common species banded at Thunder Cape in the fall of 1999
compared to their previous fall totals.

Species199919981997199619951994199319921991
Northern Saw-whet Owl6423113922162634001104861
Sharp-shinned Hawk388147358248145468329292174
Black-capped Chickadee39256301951879166930331310
Snow Bunting 21713030355540
Western Palm Warble17368199295403145230293295
Dark-eyed Junco1562161490813321639138456
Savannah Sparrow12410410313521257852758
American Redstart118114100269239255247532217
Horned Lark116714213100
Chipping Sparrow115531818810883664930
Golden-crowned Kinglet10561255924712522200
Yellow-rumped Warbler7650 154 119 462 187 423167266
Common Redpoll762720107031
Magnolia Warbler75645310411112110417779
Nashville Warbler743977152150209266120142
Red-breasted Nuthatch672852250858196383618
Lapland Longspur6310123821354
American Tree Sparrow56191443158852880
Northern Waterthrush517975587345274729
Traill's Flycatcher44373351108581173476
Brown Creeper4441383469409175130
Totals for all species406325444480360792094320652046144427
Number of
species and forms
10088928510186999092

Migration monitoring at Thunder Cape resumed on July 31 and ran through 25 October for a total of 88 days of full coverage in the fall. In general, most songbirds were observed and captured in low numbers, as has been the pattern at Thunder Cape in recent years. However, the fall hawk migration was outstanding, with record numbers of most species.

Although full coverage ended on 25 October, banding and casual observations continued through 3 November. Highlights from this period included the Cape's first Red-Bellied Woodpecker (banded) on the 28th, a Western Meadowlark on the 31st, and 68 Bald Eagles seen from the tower on 2 November.

In total,4063 birds of 100 species and forms were banded during the fall coverage period. A total of 186 species was documented in the count area. The 1999 banding total (spring and fall) of 5212 birds of 112 species and forms was the third lowest since the observatory started in 1991 but the number of species was a record high.

Fall 1999 Highlights

Red-throated Loon: 37 birds between 3 August and 10 October
Pacific Loon on 8 October
Golden Eagle: total of 39 birds on 15 days
Red Phalarope on 22 October
Little Gull on 14 October
Bonaparte's Gull: five birds on four days
Iceland Gull on 9 September
Red-bellied Woodpecker banded 28 October
Western Kingbird: 3 birds on 20 September
"Yellow" Palm Warbler banded on 22 September
Nelson's Sharp-tailed Sparrow banded on 30 August
Dickcissel banded on 19 September, seen 2-3 October
Western Meadowlark on 31 October

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