ecology of broad-winged hawk · n=86, 2008. goshawk records 2005-2009. pa goshawk nest. possible...
TRANSCRIPT
![Page 1: Ecology of Broad-winged Hawk · N=86, 2008. Goshawk records 2005-2009. PA Goshawk nest. Possible Threats? Forest fragmentation Loss of hemlock West nile virus Human disturbance Fisher](https://reader034.vdocuments.site/reader034/viewer/2022050116/5f4d41915881a577222dc2de/html5/thumbnails/1.jpg)
Ecology of Broad-winged Hawk
Rosalie, June 2016
![Page 2: Ecology of Broad-winged Hawk · N=86, 2008. Goshawk records 2005-2009. PA Goshawk nest. Possible Threats? Forest fragmentation Loss of hemlock West nile virus Human disturbance Fisher](https://reader034.vdocuments.site/reader034/viewer/2022050116/5f4d41915881a577222dc2de/html5/thumbnails/2.jpg)
PA birdsPeruBrazilColombiaPanamaGuatemalaMexico
2016
2014-2017 paths
![Page 3: Ecology of Broad-winged Hawk · N=86, 2008. Goshawk records 2005-2009. PA Goshawk nest. Possible Threats? Forest fragmentation Loss of hemlock West nile virus Human disturbance Fisher](https://reader034.vdocuments.site/reader034/viewer/2022050116/5f4d41915881a577222dc2de/html5/thumbnails/3.jpg)
Rosalie’s path as of 11-14-2017
www.hawkmountain.org/birdtracker
![Page 4: Ecology of Broad-winged Hawk · N=86, 2008. Goshawk records 2005-2009. PA Goshawk nest. Possible Threats? Forest fragmentation Loss of hemlock West nile virus Human disturbance Fisher](https://reader034.vdocuments.site/reader034/viewer/2022050116/5f4d41915881a577222dc2de/html5/thumbnails/4.jpg)
3 PA birds wintering in Peru
![Page 5: Ecology of Broad-winged Hawk · N=86, 2008. Goshawk records 2005-2009. PA Goshawk nest. Possible Threats? Forest fragmentation Loss of hemlock West nile virus Human disturbance Fisher](https://reader034.vdocuments.site/reader034/viewer/2022050116/5f4d41915881a577222dc2de/html5/thumbnails/5.jpg)
Broadwing Journey
0100020003000400050006000700080009000
10000
Totalaverage
fallaverage
springaverage
adult
adult fall imm fall
Migration Distance (km)
Adult ---total = mean of 5000 milesJuvenile = 3500 miles
Migration rate/10 deg blockAdults –250 km/day(156 miles/day)JV -127 km/day
![Page 6: Ecology of Broad-winged Hawk · N=86, 2008. Goshawk records 2005-2009. PA Goshawk nest. Possible Threats? Forest fragmentation Loss of hemlock West nile virus Human disturbance Fisher](https://reader034.vdocuments.site/reader034/viewer/2022050116/5f4d41915881a577222dc2de/html5/thumbnails/6.jpg)
Stopovers
*Stops last 1 to 51 days*1 to 12 stops per journey*Average length 2-3 days*Habitat = 70% forested
![Page 7: Ecology of Broad-winged Hawk · N=86, 2008. Goshawk records 2005-2009. PA Goshawk nest. Possible Threats? Forest fragmentation Loss of hemlock West nile virus Human disturbance Fisher](https://reader034.vdocuments.site/reader034/viewer/2022050116/5f4d41915881a577222dc2de/html5/thumbnails/7.jpg)
Conserving PA’s Northern Goshawk
![Page 8: Ecology of Broad-winged Hawk · N=86, 2008. Goshawk records 2005-2009. PA Goshawk nest. Possible Threats? Forest fragmentation Loss of hemlock West nile virus Human disturbance Fisher](https://reader034.vdocuments.site/reader034/viewer/2022050116/5f4d41915881a577222dc2de/html5/thumbnails/8.jpg)
Identification
![Page 9: Ecology of Broad-winged Hawk · N=86, 2008. Goshawk records 2005-2009. PA Goshawk nest. Possible Threats? Forest fragmentation Loss of hemlock West nile virus Human disturbance Fisher](https://reader034.vdocuments.site/reader034/viewer/2022050116/5f4d41915881a577222dc2de/html5/thumbnails/9.jpg)
2006-2016 Migration Count trends
![Page 10: Ecology of Broad-winged Hawk · N=86, 2008. Goshawk records 2005-2009. PA Goshawk nest. Possible Threats? Forest fragmentation Loss of hemlock West nile virus Human disturbance Fisher](https://reader034.vdocuments.site/reader034/viewer/2022050116/5f4d41915881a577222dc2de/html5/thumbnails/10.jpg)
Northern Goshawk in Pennsylvania
-28%N=86, 2008
![Page 11: Ecology of Broad-winged Hawk · N=86, 2008. Goshawk records 2005-2009. PA Goshawk nest. Possible Threats? Forest fragmentation Loss of hemlock West nile virus Human disturbance Fisher](https://reader034.vdocuments.site/reader034/viewer/2022050116/5f4d41915881a577222dc2de/html5/thumbnails/11.jpg)
Goshawk records 2005-2009
![Page 12: Ecology of Broad-winged Hawk · N=86, 2008. Goshawk records 2005-2009. PA Goshawk nest. Possible Threats? Forest fragmentation Loss of hemlock West nile virus Human disturbance Fisher](https://reader034.vdocuments.site/reader034/viewer/2022050116/5f4d41915881a577222dc2de/html5/thumbnails/12.jpg)
PA Goshawk nest
![Page 13: Ecology of Broad-winged Hawk · N=86, 2008. Goshawk records 2005-2009. PA Goshawk nest. Possible Threats? Forest fragmentation Loss of hemlock West nile virus Human disturbance Fisher](https://reader034.vdocuments.site/reader034/viewer/2022050116/5f4d41915881a577222dc2de/html5/thumbnails/13.jpg)
Possible Threats?
Forest fragmentationLoss of hemlockWest nile virusHuman disturbanceFisher predationClimate change? How?
![Page 14: Ecology of Broad-winged Hawk · N=86, 2008. Goshawk records 2005-2009. PA Goshawk nest. Possible Threats? Forest fragmentation Loss of hemlock West nile virus Human disturbance Fisher](https://reader034.vdocuments.site/reader034/viewer/2022050116/5f4d41915881a577222dc2de/html5/thumbnails/14.jpg)
Pa Goshawk Project Website: www.biologicalsurvey.org
![Page 15: Ecology of Broad-winged Hawk · N=86, 2008. Goshawk records 2005-2009. PA Goshawk nest. Possible Threats? Forest fragmentation Loss of hemlock West nile virus Human disturbance Fisher](https://reader034.vdocuments.site/reader034/viewer/2022050116/5f4d41915881a577222dc2de/html5/thumbnails/15.jpg)
Results - preliminary
• 10 nests statewide confirmed in 2016
• 64 historic sites revisited, 4 on Kittatinny
• Several possible nest sites reported
• NONE found on Kittatinny Ridge but one subadult sighted in early season – migrant?
• More potential habitat to explore
• Turkey hunters, hikers, need to be notified more
![Page 16: Ecology of Broad-winged Hawk · N=86, 2008. Goshawk records 2005-2009. PA Goshawk nest. Possible Threats? Forest fragmentation Loss of hemlock West nile virus Human disturbance Fisher](https://reader034.vdocuments.site/reader034/viewer/2022050116/5f4d41915881a577222dc2de/html5/thumbnails/16.jpg)
Many Generous
Private Donors
& Indiegogo
Supporters
THANK YOU to Project Supporters and Sponsors!
Lancaster County Bird Club:
The Harold B. Morrin Scholarship