1. BUILDING STRONG ® PORTLAND DISTRICT 1 Inland Avian Predation Fish Field Unit Nathan Zorich FPOM Avian Update McNary emphasis September 13, 2012 Charlie Moores Tim AveryMike Baird

2. BUILDING STRONG ® PORTLAND DISTRICT 2 Fish eating bird colonies (Roby, Collis et al. 2011)

3. BUILDING STRONG ® PORTLAND DISTRICT 3 USACE Avian Management Estuary NWP Push – Pull Reduce habitat in estuary Attract to artificial nesting island Monitoring In-land NWW Dam based Passive & Active Deterrents Monitoring Standardized Counting & Reporting Other Corps’ land (IAPMP) Reduce habitat Monitoring

4. BUILDING STRONG ® PORTLAND DISTRICT 4 BiOp requirements  Smolt survival 96% Spring & 93% Summer  Inland Avian Reasonable & Prudent Alternatives 47. Manage avian predators on Corps lands 48. Continue deterrents at dams 68. Monitor avian predators & smolt impacts  Needs Deterrent evaluation Long term monitoring Prioritize avian deterrent spending

5. BUILDING STRONG ® PORTLAND DISTRICT 5 Long Term Monitoring: Counts

6. BUILDING STRONG ® PORTLAND DISTRICT 6 Focused Monitoring : Fish Consumption Source: multiple: FFU studies

7. BUILDING STRONG ® PORTLAND DISTRICT 7 Deterrent: Funding Hazing

8. BUILDING STRONG ® PORTLAND DISTRICT 8 Monitoring: Standardization

9. BUILDING STRONG ® PORTLAND DISTRICT 9 Monitoring: Data collection

10. BUILDING STRONG ® PORTLAND DISTRICT 10 Monitoring: Analysis & Reporting

11. BUILDING STRONG ® PORTLAND DISTRICT 11

12. BUILDING STRONG ® PORTLAND DISTRICT 12

13. BUILDING STRONG ® PORTLAND DISTRICT 13 Foraging Gulls 2012

14. BUILDING STRONG ® PORTLAND DISTRICT 14 McNary Dam

15. BUILDING STRONG ® PORTLAND DISTRICT 15 McNary 2012

16. BUILDING STRONG ® PORTLAND DISTRICT 16 McNary 2012

17. BUILDING STRONG ® PORTLAND DISTRICT 17

18. BUILDING STRONG ® PORTLAND DISTRICT 18 John Day Gulls 2009

19. BUILDING STRONG ® PORTLAND DISTRICT 19 John Day Gulls 2010

20. BUILDING STRONG ® PORTLAND DISTRICT 20 John Day Dam 2009* *Daily mean gull count n = 99 One dot = one gull

21. BUILDING STRONG ® PORTLAND DISTRICT 21 John Day Dam 2010* *Daily mean gull count n = 17 One dot = one gull

22. BUILDING STRONG ® PORTLAND DISTRICT 22 John Day Gulls 2011

23. BUILDING STRONG ® PORTLAND DISTRICT 23 Gull Counts April – July (foraging gulls / day) * April – 20 May 2010

24. BUILDING STRONG ® PORTLAND DISTRICT 24 JFOF Approximate

25. BUILDING STRONG ® PORTLAND DISTRICT 25 Concerns from Project Biologist  Region wants current hazing or more ► Unsustainable under O&M budget forecast ► Benefits hazing vs. political reality? JD Consumption: 6k (0.02%) of 31 M smolt in 2011 38k (0.27%) of 40 M smolt in 2010 (Zorich et al. 2011)  Maintenance cost of extensive line array JD ► $6 M to build, 125 synthetic lines 3,000 ft. long ► Maintenance will increase as lines age and fail