Dichotomous Key for Birds

Lisa Anderson

In this dichotomous example, the key to identify birds is explained based on the physical characteristics like size of the bird; web or no web feet, color of wings. Dichotomous key is the best tool to divide one specie into several groups, and then further divide into more small groups. When taking birds in groups, they will be classified by their physical characteristics, like fur, feet, wings and others, check this dichotomous key diagram to learnm more about this.

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Vertebrate is any animal with a backbone. In this example, vertebrates are classified based on series of visible characteristics. If it has fur then it is classified as mammal else they are grouped based on feathers. If it has feathers then it is classified as bird else they are grouped based on dry skin. If it has dry skin then it is classified as Reptile else divide the group based on scales. If it has scales it is classified under fishes else classified under Amphibians.

Dichotomous Key Example

Lisa Anderson

Dichotomous Key Template

Lisa Anderson

A dichotomous key is a series statements consisting of 2 choices that describe characteristics of the unidentified organism. The user has to make a choice of which of the two statements best describes the unknown organism, then based on that choice moves to the next set of statements, ultimately ending in the identity of the unknown. Here the key begins with classification based on dry skin, hair etc,

Dichotomous Key Diagram

Lisa Anderson