Michaela demonstrates how to join in the winterwatch bird table experiment.. In this video he explores the role played by the water the bird "drinks," shows what is under the bird's hat and demonstrates that it can operate using heat from a light bulb or by "drinking" whiskey.. Make a "whirly bird" from paper. draw a table like table 1 in your lab notebook so you can use it to record your data. fall time (seconds) what happens if you change these properties on the whirly bird design? do an experiment where you change one of these variables and measure how it affects the fall time..
Damage to grapes from bird predation is a serious problem for grape growers. an article reported on an experiment involving a bird-feeder table, time-lapse video, and artificial foods. information was collected for two different bird species at both the experimental location and at a natural vineyard setting.. In majerus's new predation experiment at an unpolluted site, significantly more released melanics than non-melanics disappeared, or were seen to be eaten by nine bird species (figure 1 and table 2). this lower fitness of melanics is expected if the observed decline in melanism ( table 2 ) is explained by visual predation.. Unfortunately, he did not live to publish the results, which are analysed and presented here by the authors. majerus released 4864 moths in his six-year experiment, the largest ever attempted for any similar study. there was strong differential bird predation against melanic peppered moths..
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