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Table of
Contents

Classroom FeederWatch Home

 

 

 

 

 

 

 

 

October 1, 1999

Research

Bird Deterrents by Sara and Caitlin

Favorite Birds by Darren

Artwork

American Goldfinch by Rachel

Grebe by Hannah

Short Essay

Birds of a Feather Flock Together by Alix

Projects

Students Make Their Own Feeders by Chester School Fifth Graders

Poetry

Chickadee by Ryan


Bird Deterrents

By Sara and Caitlin
Mr. Stadille's class
Carmel Middle School
Carmel, CA
Grade 6

HYPOTHESIS: If bird deterrents are related to keeping birds away from boats, then a boat without a bird deterrent will have more birds on it than a boat with a deterrent.  See below for a picture of the two deterrents referred to in this project.

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MATERIALS AND EQUIPMENT: Log book and binoculars.

PROCEDURE:

  1. Set up logbook to record data.
  2. Watch birds in Monterey Marina for one-half hour on three different days.
  3. Find nine pleasure boats with fake owls, seven with gull-sweeps, and ten without any deterrents. Find four fishing boats with fake owls, four with gull-sweeps, and ten without any deterrents.
  4. Observe and count the birds on each boat.
  5. Record data in logbook.

DATA: On November 21, 1998 we counted the following numbers of birds on boats:

Bird species Boats with fake owls Boats with gull-sweeps Boats w/o deterrent
Western Gull 2 (fishing)
1 (pleasure

None

4 (fishing)
5 (pleasure)
Brown Pelican 1 (fishing)

None

1 (fishing)
1 (pleasure)
Pigeon 1 (pleasure)

None

2 (fishing)
Cormorant None

None

1 (fishing)
Brewer’s Blackbird None

None

1 (pleasure)
Total 5

None

15

On November 29, 1998, we counted the following numbers of birds on boats:

Bird species Boats with fake owls Boats with gull-sweeps Boats w/o deterrent
Western Gull 1 (fishing) None 2 (fishing)
3 (pleasure)
Brown Pelican 1 (pleasure) None 3 (fishing)
1 (pleasure)
Pigeon None None 2 (fishing)
Cormorant None None None
Brewer’s Blackbird None None None
Total 2 None 11

On December 6, 1998 we counted the following numbers of birds on boats:

Bird species Boats with fake owls Boats with gull-sweeps Boats w/o deterrents
Western Gull 2 (fishing) None 5 (fishing)
4 (pleasure)
Brown Pelican None None 2 (fishing)
Pigeon 1 (fishing) None 4 (fishing)
1 (pleasure)
Cormorant None None 1 (fishing)
Brewer’s Blackbird None None None
Total 3 None 17

 

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ANALYSIS: The data shows that there are fewer birds on boats with deterrents. The graph illustrates that gull-sweeps work very well, because there were no birds on boats with gull-sweeps. The graph also shows that the fake owls help, but do not work completely, because there were fewer birds on boats with fake owls than on the boats with no deterrents. This supports the hypothesis that bird deterrents work. We learned that the gull-sweep is the best investment, rather than a fake owl, even though the owl seems to help. The data shows that fishing boats had more birds than pleasure boats. This is probably because the fish scraps are attracting the birds. This report did not look at the effects of inflatable snakes as deterrents, because we could not observe any.

CONCLUSION: We went to the Monterey Marina and looked at boats. Some of the boats had fake owls, some had gull-sweeps and some did not have any deterrent on the boat. We observed different species of birds and counted how many birds were on the boats. We found no birds on boats with gull-sweeps, and fewer birds on boats with fake owls than on boats with no deterrents. Possibly gull-sweeps work better because they are moving, while a bird can get used to a fake owl. Some of the things we could do to improve this experiment are increasing the number of times we went to the marina, and bird watching for a longer amount of time. We predict that more people are going to get gull-sweeps and birds will have fewer places to land. The birds may start landing on houses and docks. If people have a problem with birds on their buildings, this study suggests they should put gull-sweeps on them instead of fake owls.

 

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Favorite Birds

By Darren
Ms. Kahl's class
Leeds Elementary School
Arlington, WI
Grade 3

favorite.gif (6178 bytes)

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American Goldfinch

By Rachel
Ms. Smith's class
Gowana Middle School
Clifton Park, NY
Grade 7

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Grebe

By Hannah
Ms. Smith's class
Gowana Middle School
Clifton Park, NY
Grade 7

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Birds of a Feather Flock Together

By Alix
Ms. Bauer's class
Lower Southampton Elementary School
Feasterville, PA
Grade 3

Birds flock because there is safety in groups. Groups of birds have a better chance of avoiding predators than one bird on their own. Birds feeding in flocks always have a few lookouts ready to sound the alarm in case of enemies. Even if a predator attacks, it might get confused by the big numbers of birds and it can’t manage to get one single bird out of the big crowd. For this very same reason, zebras run in herds and fish swim in schools.

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Students Make Their Own Feeders

By Chester School Fifth Graders
Ms. Lang's class
Chester Elementary School
Wooster, OH
Grade 5

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Brandon

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Christie

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Victor

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Chickadee

By Ryan
Ms. Smith's class
Gowana Middle School
Clifton Park, NY
Grade 7

A Black-capped Chickadee sits on a tree

He turns around to look at me

He calls to his friends up in the sky

Then he spreads his wings and up he flies

 

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