Subject: Iona Island Bird Banding Station results for fall 1999
Date: Nov 11 17:38:16 1999
From: Libor Michalak - pieris at sprint.ca


Tweets,

For those that are interested................

I have had some requests regarding data on the birds banded at the Iona
Island banding station this fall. All data is in and analysis is finally
done. Below are the statistics of the station as well as a list of all
birds captured fall last year ('98), and fall this year ('99). The table
shows each species and its increase or decrease from the previous year.


1998 1999 Diff 98 to 99
Tot No. Days Monitoring 47 57 10
No. Banding Days 40 44 4
Rain/Wind Days 7 13 6
Birds Captured 1103 1018 -85
Ave. Birds Cap / Day 19 17 -2
Ave. Net Hrs. / Day 30 42 12
CPUE Birds / Net Hour 0.6 0.4 -0.2
Total Man Hrs. Effort 131.6 184 52.4
CPUE Birds/Tot. Man hr. 8.4 5.5 -2.8

1999 had 41% more adult birds banded than in 1998

Species 1998 1999 % up or down from '98
GCSP 36 4 -88.9%
PSWS 82 13 -84.1%
BHGR 5 1 -80.0%
WIWR 5 1 -80.0%
ORJU 7 2 -71.4%
FOSP 31 15 -51.6%
RCKI 2 1 -50.0%
OCWA 151 86 -43.0%
SOSP 173 121 -30.1%
LISP 160 126 -21.3%
GCKI 5 4 -20.0%
BCCH 2 39 94.9%
MYWA 1 10 90.0%
BEWR 2 10 80.0%
SWTH 2 9 77.8%
HOFI 47 146 67.8%
PSFL 2 6 66.7%
BARS 2 1 50.0%
MGWA 4 8 50.0%
WAVI 5 10 50.0%
AMGO 9 15 40.0%
COYE 13 21 38.1%
CEDW 7 11 36.4%
SPTO 22 34 35.3%
WIFL 11 17 35.3%
WTSP 2 3 33.3%
AMRO 9 13 30.8%
AUWA 15 20 25.0%
WETA 3 4 25.0%
YWAR 90 120 25.0%
WIWA 13 15 13.3%
SAVS 21 24 12.5%
BRCR 1 1 0.0%
MAWR 1 1 0.0%
SWSP 1 1 0.0%
AMRE 1 0 N/A
BTYW 1 0 N/A
CAVI 1 0 N/A
CCSP 1 0 N/A
CHSP 1 0 N/A
HETH 8 0 N/A
HOSP 2 0 N/A
NOWA 1 0 N/A
TOWA 1 0 N/A
WEWP 1 0 N/A
BUSH 0 4 N/A
DOWO 0 2 N/A
GWCS 0 54 N/A
PUFI 0 1 N/A
RUHU 0 12 N/A
UYRW 0 7 N/A
VGSW 0 2 N/A

====================
Libor and Dawn Michalak
Richmond, BC
604-274-2231