2002 - Midwest Peregrine Falcon Restoration Project

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SUMMARY OF PEREGRINE NESTING IN 2002
In the Midwestern United States, southeastern Manitoba, and the Lake Superior
basin of Ontario in 2002, 144 pairs were known to be on territories, 128 pairs (89%) laid
eggs, 106 pairs (83% of the nesting pairs) were successful in fledging 284 young, 2.7
young per successful pair, 2.2 per nesting pair, 2.0 per territorial pair. Of the 144
territorial pairs, 62 (43%) were on buildings, 29 (21%) were on smokestacks, 13 (9%)
were on bridges, and 40 (28%) were on cliffs. Thirty-seven of the 62 building pairs
(60%) succeeded, fledging 104 young. Twenty-five of the 29 smokestack pairs (86%)
fledged 73 young. Nine of the 13 bridge pairs (69%) fledged 20 young. Of the 40 cliff
pairs, 33 (83%) are known to have succeeded, fledging 87 young. The other seven cliff
pairs either failed, did not nest, or the outcome is unknown. Comparing this year with
2001, the total number of known pairs continued to grow slowly (133 to 144), about the
same percentage nested (88%), but fewer pairs were successful (73% vs. 77%), resulting
in fewer young fledged this year than last (284 vs. 290).
In addition to the 284 young known to have fledged in the wild in the Midwest
this year, an additional 18 young were hacked in our area, 11 in Kentucky, three in
Missouri, and four in Iowa.
2002 POPULATION STATUS
TOTALS FOR REGION:
106 successful pairs fledged 284 young (SP in list below)
22 pairs laid eggs but failed to fledge young (LE)
16 pairs, non-breeding or status not known (NB)
144 territorial pairs
NORTH DAKOTA
1. NB-Community First Bank, Fargo, Cass County, North Dakota. Wick Corwin
reports that a new female, one-year-old Frieda 24/A, fledged in 2001 at Dairyland
Cooperative, Alma, Wisconsin, paired with male Dakota Ace b/r *H/D, here for the third
year. The female spent a lot of time in the nest box and was courted and fed by the male,
but no eggs were laid, likely because of the female's age. Frieda 24A was the third
successive female to pair with Dakota Ace *H/D in 2002. The first two were also
juveniles and neither was banded.
MINNESOTA
2. SP-Multifoods Tower, Hennepin County, Minneapolis, Minnesota. Will 04Y,
here for the 14th year, and four-year-old female *E/X, here for the third year, produced
five eggs as they did last year, but again only three hatched. Two males and a female
fledged. On July 18, Will 04Y was found under a power line in Minneapolis with a wing
broken beyond repair. He was the third oldest peregrine in the Midwest, after two 16-