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Central Wisconsin Central Wisconsin Kestrel ResearchKestrel Research
Janet EschenbauchJanet Eschenbauch
Amber EschenbauchAmber Eschenbauch
Eric Anderson-FacilitatorEric Anderson-Facilitator
Falco sparveriusFalco sparverius
Holds the Latin meaning “falcon of the sparrows”
Often called a sparrow hawk
Frances HamerstromFrances Hamerstrom
Monitored nestboxes for 30 years with help from gabboons.
Started this historic nestbox program in 1968.
Buena Vista GrasslandsBuena Vista Grasslands
Originally swamp and open marsh, the BVG Originally swamp and open marsh, the BVG was ditched and drained for agricultural usewas ditched and drained for agricultural use
WDNR manages 12,000 acres for WDNR manages 12,000 acres for preservation of Greater Prairie Chickenpreservation of Greater Prairie Chicken
MonitoringMonitoring
14/58 on Trees
26/58 on Electric Poles
18/58 on Free-standing Poles
May to August
ClutchesClutches Between Between
3-6 Eggs3-6 Eggs Lays one Lays one
egg every egg every other dayother day
Incubates Incubates when when second to second to last is laidlast is laid
Incubates Incubates for 28-30 for 28-30 daysdays
AdaptationsAdaptations
Eyespots Eyespots confuse confuse predatorspredators
Eurasian Eurasian Kestrels Kestrels locate voles locate voles by urine trails by urine trails which reflect which reflect ultraviolet ultraviolet lightlight
DietDiet
MiceMice Small birdsSmall birds SnakesSnakes GrasshopperGrasshopper
ss DragonfliesDragonflies Other insectsOther insects
Capture MethodsCapture Methods
Mechanical Mechanical stuffed owl, stuffed owl, Recorded Recorded owl call, owl call, Dho-gaza Dho-gaza NetNet
Bal-chatri Bal-chatri traptrap
Hand Hand grabbinggrabbing
Dho-gaza NetDho-gaza Net
Net Net drops drops down to down to cradle cradle kestrelkestrel
No birds No birds have have been been injuredinjured
Brood PatchBrood Patch
Males Males brood brood about about 30% of 30% of the timethe time
Some Some develop develop brood brood patchpatch
EducationEducation
Nest site fidelityNest site fidelity Natal dispersalNatal dispersal Clutch success Clutch success
ratesrates
Educate public with Educate public with help from other help from other researchers and researchers and volunteersvolunteers
Percent of boxes occupied by American Kestrels in central Wisconsin from 2002-2008.Our study has not shown a significant drop.
Clutch size, number hatched, and number of fledglings from successful AMKE nest boxes in central WI.
We would like to thank the WDNR, Greg Dahl, Jim Keir, the Citizen-Based Monitoring Partnership Grant Program, Eric Anderson, Eugene Jacobs, the Aldo Leopold Audubon Society, D. Haessly and all of our volunteers for making this research possible.