Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to identify a mockingbird [title] Notice the size. [step] If you want to figure out if a bird is a mockingbird, take note of its size first. This can help you determine whether he fits the characteristics of a mockingbird.

Ending1: It is important to check the size of the bird's feathers. A mockingbird that is more than 6-7 feet tall (1.2-1.2 m) will have twice as much feathers, as will a mockingbird with a tightly tucked tail. Ending2: [substeps] Male and female mockingbirds are both of similar sizes. However, some males may be slightly larger than females. Ending3: [substeps] For example, a mockingbird may be a medium-sized bird. It might be a medium bird like a tiger or mouse. Ending4: [substeps] For example, a mockingbird with a size 3 patch of feathers on its beak is somewhat larger than a mockingbird with a size 2 patch. A mockingbird with a size 4 patch of feathers on his wing is a mockingbird.

Answer format: ending1/ending2/ending3/ending4