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The Green Key Funnel, located in West Pasco
County, Florida, is a spring migration phenomena mainly for
warblers. Ever since its discovery in 2001, d ata has been continuously collected
and reported from the stationary count position shown below. Over 25,000 warblers of 24 identified
species have flown through this funnel in the past 6 years. |
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All counts taken from this location on Green Key Road
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| This mangrove covered peninsula's unique shape
determines the flight pattern of migrating warblers as they continue their
northern migration. At first light, warblers funnel past the
stationary point. Flying in an easterly path through the mangroves,
they then turn north at the end of the causeway funnel. |
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Green Key Funnel Migration Summary 2001 - 2006 |
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Totals |
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|
2006 |
2005 |
2004 |
2003 |
2002 |
2001 |
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| 6:00AM-6:30AM |
0 |
0 |
44 |
0 |
312 |
0 |
356 |
| 6:30AM-7:00AM |
426 |
198 |
727 |
246 |
299 |
3352 |
5248 |
| 7:00AM-7:30AM |
2176 |
935 |
3284 |
1348 |
1030 |
3025 |
11798 |
| 7:30AM-8:00AM |
1336 |
161 |
716 |
530 |
717 |
1440 |
4900 |
| 8:00AM-8:30AM |
636 |
1 |
48 |
228 |
214 |
763 |
1890 |
| 8:30AM-9:00AM |
372 |
0 |
0 |
103 |
22 |
526 |
1023 |
| TOTAL WARBLER |
4946 |
1295 |
4819 |
2455 |
2594 |
9106 |
25215 |
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| Data collection and review has substantiated that
easterly winds the night before will bring migrating warblers through
the funnel. This migration pattern only lasts for several hours
beginning on or before first light. |
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