# All Science Fair Projects

## The relationship between the size of a bird and its perching behavior

### Conclusion

The hypothesis holds true: the crow  puts a greater distance between itself and another crow when it perches on a wire. The sparrow puts a smaller distance between itself and another sparrow when perching on a wire.

Birds that sit on a power cables or telephone lines usually sit at equally spaced distances between one another. It is almost as if the birds have a way of measuring the distance between their perching neighbor. This gap is commonly referred to as the "individual distance" and it is a characteristic displayed by a few species of birds. It arises due to the territorial nature of the bird species.

### Also consider

Conduct the experiment under different weather conditions (a sunny, cloudy, windy or rainy days).

Identify a different species of bird for the experiment (eg. pigeons). How does their behavior compare with that of the birds in this experiment?

### References

What determines individual distance? - http://birdcentral.net/distance.htm

Sparrow - http://en.wikipedia.org/wiki/Sparrow

Crow - http://en.wikipedia.org/wiki/Crow

Passerine - http://en.wikipedia.org/wiki/Passerine

See our all-time most popular science projects
 .adslot_21 { display:inline-block; width: 320px; height: 250px; } @media (min-width: 420px) { .adslot_21 { display: none; } } .adslot_22 { display:inline-block; width: 336px; height: 280px; } @media (min-width: 1025px) { .adslot_22 { display: none; } } @media (max-width: 419px) { .adslot_22 { display: none; } } .adslot_23 { display:inline-block; width: 200px; height: 90px; } @media (max-width: 1024px) { .adslot_23 { display: none; } }
Complexity level:
6
Project cost (\$):
5
Time required:
It will take an hour to set up the experiment, and 2 days for observation.
Material availability:
Look for cable lines that birds often perch on
Safety concerns:

None