– G. Radcliffe, 2004
Lab 3A – Bird Classification
Problem: Develop a classification system for organizing birds.
Background Information: When we classify, we try to group organisms with similar characteristics. You are grouped with whales, dogs, horses, and bats because you have characteristics in common with them: warm-blooded, hair, give birth to live offspring, and feed young milk. We could have grouped you with birds because you have 2 legs, and we could have grouped whales with fish. What is important in classification is to select the most important similarities and differences as the basis for grouping. The body of a human is very different from that of a bird, and even though whales have no legs and are aquatic, our internal organs and reproductive process are almost identical.
Separate the items below in 2 groups, and then tell why you divided them that way.
Stove, refrigerator, TV, radio
- Classify the 15 birds listed in the data below.
- Complete the chart below using available field guides to see the birds.
- Use the information to then complete the classification chart started below.
- Use the classification rules that you have previously used.
- Begin with 1 group, and divide into 2.
- Subdivide these 2 groups into 2 more.
- Continue subdividing until each remaining group has only 1 species in it.
- Once species are separated, never recombine them.
- When dividing, create 2 groups that do not overlap.
- For each group created, list the numbers of the species included in that group.
|PredatorHooked Beak and Talons||Not a PredatorNo Hooked Beak,Talons|
|5||Downy Woodpecker||4 toes||cavity||White back|
|6||A. Goldfinch||Black wings with white stripes||Edges,lawns|
|8||Common Grackle||long||Shiny, black|
|9||Song Sparrow||Brush, gardens||Black dot on breast|
|10||Kestrel||Talons||Long, brown||Pointed, curved back||Cavity|
|12||Mourning Dove||Long, pointed|
|14||Carolina Wren||Slim, curved||Pointed up||White eye stripe|