Migration Highlights
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Fall 2009
Event
St. Marks 10
Chass 10
Target date for departure
October 10, 2009
Actual date of departure
October 16, 2009
Number of birds at takeoff
20
Number of birds surviving fall migration
10
10
Date migration ends
Jan. 13, 2010
Jan. 20, 2010
Total days of fall migration
82
89

Number of actual flight days (progress made)

21
24

Number of no-fly days (grounded or turned back)

61
65
Longest flight (in distance)
116 miles (3 hrs. 10 mins)
Total miles flown
1,094.5
1,238.6
Days on Wintering Grounds
i70*
(first departures 3/24)
75
(departed 4/5/10)
Number of birds before spring migration
10
09
Number of birds surviving spring migration
010
09

NOTES:

  • Only 5 birds followed all the way to Stopover #1 on the first try. It took 7 days to accomplish "Day 1"— getting all 20 chicks to Stopover #1.
  • Sixteen of the birds flew off on the exercise day of Nov 20 and didn't come back! They flew more than 15 miles before Richard located and caught up to them. He then turned them on course and led them to safe landing at the next planned stopover. this was a first in the 9 years of ultralight-led migrations.
  • For the third year in a row, the migration stretched into a new calendar year. Poor weather outlook made it possible for the team to take a holiday break in late December.

    *The first St. Marks departures came after 70 days and two birds stayed 91 days