Survey Map


About WRS


WRS Survey Summary

[Login] to see full survey details.

Select Route:
Survey Date:

RouteGoose Lake
Location Illinois, USA
Survey date 2021-02-23
Survey ID1141

Survey Conditions

Survey Date: 2021-02-23Start Time: 12:40:00End Time: 15:20:00
Temperature7 (C)0 (C)
Cloud Cover0 (%)40 (%)
Visibility0 (km)0 (km)
Precipitation0: None0: None
Wind Speed3: 12-19 km/h (8-12 mph)3: 12-19 km/h (8-12 mph)
Wind DirectionWSWSW
WaterPartly frozenPartly frozen
Snow Depth0 (in)0 (in)
Observer 1Bob Fisher
Observer 2Vicky Sroczynski
Observer 3Stan Zatarski
Observer 4Nancy Allured
Notes Due to Covid, we ran the route in 2 2 car caravans, splitting the route in half,instead of a single car with 3- 4 observers.
We totaled an incredible 33 Rough-legged Hawks; the hypothesis -these birds had moved further S when the cold and heavy snow cover hit N IL and WI. As the temperature began to moderate and the snow cover lessened, these birds were moving back N, and we caught them as they moved through the area. With the 7 we counted on the LaSalle route conducted on this same day in the AM, we had 40 Roughlegs in total!

Survey Sightings

RL (Rough-legged Hawk)12:00:001Perched Dark
RT (Red-tailed Hawk)13:00:001Perched
RL (Rough-legged Hawk)13:05:001Perched Light
RT (Red-tailed Hawk)13:05:001Perched Adult
BE (Bald Eagle)13:15:002Perched Adult
RT (Red-tailed Hawk)13:30:002Perched
CH (Cooper's Hawk)13:50:001Flying Immature
RL (Rough-legged Hawk)13:50:004Flying
RT (Red-tailed Hawk)13:50:002Flying
BE (Bald Eagle)13:55:001Flying Immature
RL (Rough-legged Hawk)13:55:003Perched
RT (Red-tailed Hawk)13:55:002Perched Adult
RL (Rough-legged Hawk)14:05:003Flying Perched
RT (Red-tailed Hawk)14:05:002Perched Adult
BE (Bald Eagle)14:10:001Flying Adult
RL (Rough-legged Hawk)14:10:004
RT (Red-tailed Hawk)14:20:001Flying Adult
RL (Rough-legged Hawk)14:30:003Perched Light
AK (American Kestrel)14:35:001Flying AdultMale
RL (Rough-legged Hawk)14:35:001Flying Light
BE (Bald Eagle)14:45:001Perched Immature
NH (Northern Harrier)14:45:002Flying
RL (Rough-legged Hawk)14:45:0010
RT (Red-tailed Hawk)14:55:001Perched
RT (Red-tailed Hawk)15:00:002
RT (Red-tailed Hawk)15:05:001Perched Adult
RL (Rough-legged Hawk)15:10:001Perched Light
RL (Rough-legged Hawk)15:10:001Perched Light
NH (Northern Harrier)15:15:001Flying Female
RL (Rough-legged Hawk)15:15:001Perched Light
RT (Red-tailed Hawk)15:15:003Flying Perched

Survey totals by species

SpeciesTotal Count
RL (Rough-legged Hawk)33
RT (Red-tailed Hawk)18
BE (Bald Eagle)5
CH (Cooper's Hawk)1
AK (American Kestrel)1
NH (Northern Harrier)3