Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to treat trichomiasis in doves [title] Look for cheesy-looking lesions in the mouth. [step] Open your dove's mouth and take a close look at the lesions. If you see white, yellow, or brown, and cheesy-looking growths in the mouth, your dove may have canker.

Ending1: These growths are the early signs of canker. [substeps] If you see white, yellow, or brown growths, you are nursing your dove. Ending2: The growths look like nodules or ulcers at the back of the throat. As a result, your dove may have difficulty swallowing food. Ending3: Canker growths are painful and look like hail mary lesions. [substeps] False ce lesions are smaller than real ce lesions. Ending4: [title] Observe your dove's gums. [step] A healthy bird will chew into bite marks.

Answer format: ending1/ending2/ending3/ending4