[Ontbirds] Detroit River Hawk Watch (11 Sep 2016) 228 Raptors

reports at hawkcount.org reports at hawkcount.org
Sun Sep 11 18:59:52 EDT 2016


Detroit River Hawk Watch
Brownstown, Michigan, USA
Daily Raptor Counts: Sep 11, 2016
-------------------------------------------------------------------

Species            Day's Count    Month Total   Season Total
------------------ ----------- -------------- --------------
Black Vulture                0              0              0
Turkey Vulture               9            172            172
Osprey                       2              7              7
Bald Eagle                   1             18             18
Northern Harrier             1             67             67
Sharp-shinned Hawk          70            570            570
Cooper's Hawk                8             16             16
Northern Goshawk             0              0              0
Red-shouldered Hawk          0              0              0
Broad-winged Hawk           61            386            386
Swainson's Hawk              0              0              0
Red-tailed Hawk             24             54             54
Rough-legged Hawk            0              0              0
Golden Eagle                 0              0              0
American Kestrel            48            174            174
Merlin                       2              8              8
Peregrine Falcon             0              0              0
Unknown Accipiter            1              2              2
Unknown Buteo                1              1              1
Unknown Falcon               0              1              1
Unknown Eagle                0              0              0
Unknown Raptor               0              5              5

Total:                     228           1481           1481
----------------------------------------------------------------------

Observation start time: 07:00:00 
Observation end   time: 15:30:00 
Total observation time: 8.5 hours

Official Counter:        Dustin Brewer

Observers:        Andrew Sturgess

Visitors:
There were many visitors trickling in and out today who were hoping to see
a substantial Broad-winged Hawk flight. At one moment there were as many as
25 people scanning the sky.


Weather:
We arrived to the count site to find virtually no clouds in the sky. This
clarity persisted until around 10:00, when fluffy, cotton-ball-like
(Cumulus) clouds rolled in, which were a helpful background to use when
looking for raptors. Until about the last hour and a half of the count, the
relatively light wind was coming from the north and west, and finished from
the southeast.

Raptor Observations:
Though today was expected by many to be a good Broad-winged Hawk day, it
was not particularly so relative to what will likely come later. Rather,
the day was relatively slow with Sharp-shinned Hawks, Broad-winged Hawks,
and American Kestrels moving more than the other species. We did, however,
have more Red-tailed Hawks moving through than any other day yet this
season. During the last hour and a half of counting, when the wind
conditions became more favorable, we saw an increase in movement, with 20
or more individuals counted for Broad-winged Hawks, American Kestrels, and
Sharp-shinned Hawks, between 2 and 3.

Non-raptor Observations:
A few hummingbirds and monarch butterflies were spotted today, making their
way south. 

Predictions:
Tomorrow is predicted to be sunny and clear, with favorable winds from the
south and east, so hopefully many of the Broad-winged Hawks that didn't fly
today will fly tomorrow!
========================================================================
Report submitted by Detroit River Hawk Watch (greg_norwood at fws.gov)
Detroit River Hawk Watch information may be found at:
http://www.drhawkwatch.org 






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