Welcome to The Bluebird Box since 1995

Including the Internet's original Bluebird FAQ & featuring Best of Bluebird Mailing Lists Classified
Contact Me

 

Welcome to The Bluebird Box since 1995

Including the Internet's original Bluebird FAQ & featuring Best of Bluebird Mailing Lists Classified
Contact Me

 

Welcome to The Bluebird Box since 1995

Including the Internet's original Bluebird FAQ & featuring Best of Bluebird Mailing Lists Classified
Contact Me

 

Welcome to The Bluebird Box since 1995

Including the Internet's original Bluebird FAQ & featuring Best of Bluebird Mailing Lists Classified
Contact Me

NESTBOX COMPARISON STUDIES
From New York:

 two quite different studies of nestbox preferences by bluebirds:

E Dave Hofer, of East Concord has compared standard (NABS) and Peterson boxes for five years.  He has kept detailed records and banding data, including 15 recaptures in the last three years.  One of those was five years old.  The Peterson boxes proved twice as successful as the NABS box.  This past year, he paired Peterson boxes with five Gilwood boxes and eight PVC boxes.  One of the Gilwood boxes was used twice by bluebirds.  Tree swallows did use all five of the Gilwood boxes and all eight of the PVC boxes.

"In general our year was definitely two different seasons: April and May were not good at all; June and July were great.  Tree swallows had a terrible year this season... it wasn't just the bad weather.  I think we had far fewer [tree swallows] in our area this year."

Data, yery condensed below, is from eight pages of detailed records sent to Dave Ahlgren.

 

Description 1996 1997 1998 1999 2000

In a note to BBRP, David Hofer noted that there were no PVC boxes in the area, so "it might take some time for bluebirds to become comfortable with them". David plans to add more paired PVC boxes and pairs of Peterson with Gilwood or NABS for further analysis.

 

# of boxes
# of NABS boxes
# of Peterson boxes
# of Gilwood boxes
# of PVC boxes
Paired box locations
52
42
10
0
0
22
82
61
21
0
0
36
82
54
28
0
0
38
87
53
34
0
0
41
95
41
41
5
8
46
Fledged/NABS box
Fledged/Peterson box
Fledged/Gilwood box
Fledged/PVC box
Total birds fledged
1.38
1.60
0
0
74
0.72
1.86
0
0
83
1.11
2.57
0
0
132
0.60
2.79
0
0
127
1.20
2.80
1.80
0
173
Adults banded
Chicks banded
25
97
31
100
35
184
64
241
69
283

Kevin L. Berner,(1) of New York University, Cobleskill, presented some of his personal research at the recent North American Bluebird Society (NABS) Board meeting in Minneapolis: In my research through 1999, my most successful boxes to date had been NABS boxes with oval [Peterson] holes.  This summer, I paired NABS oval-hole boxes with both Gilwood and Troyer boxes. (2) The NABS oval boxes paired with Troyer boxes had twice as many bluebird attempts as the Troyer box.  Tree swallows used nearly equal number of each style.  When Gilwood boxes were paired with NABS oval-hole boxes, the Gilwood boxes had more than six times the bluebird use than the NABS boxes.  Swallows used the NABS boxes at a higher rate than Gilwood, probably because bluebirds occupied most of the Gilwood boxes.

Box style No. of boxes No. of nesting attempts
Bluebirds Tree Swallows
NABS oval
Troyer
21
21
17
8
12
11
NABS oval
Gilwood
21
21
4
25
16
7

 

(1) Kevin Berner, NABS Research Chairman, will be one of our speakers at our April 21 Conference.
(2) Troyer boxes are rectangular with a slot entrance at the top of a downward-slanting front.  The Gilwood box is a sturdv wooden box, with adjustable entrance.

 

Posted with permission from the February 2001 Bluebird Recovery Program Newsletter "BLUEBIRD NEWS"

01/03/14

 

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Home
Articles
Nest Box Info
Feeding Bluebirds
Best Of...
Gallery
Forums/Mailing Lists
Groups/Resources
Personal Sites
Commercial Sites
Bluebirders Pictures
Monitor Form
Calls/Songs
Miscellaneous
Table Of Contents
Maps
First Egg 2000
First Egg 2001
First Egg 2002
Over Winter 2001
Over Winter 2002
BB Survey
CBC
BB Ref Guide