Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to treat psittacine beak and feather disease in lories and lorikeets [title] Look for missing feathers. [step] Check the feathers on their wings and tail. Watch out for feathers that fall out easily.

Ending1: Lorikeets tend to develop beak and feather diseases more often than lorikeets. [substeps] Also, look for bald spots on their heads. Ending2: You can also get feathers from tummies that have fallen out easily. It's a good idea to keep quarantined bird crates inside the house. Ending3: If the base of the feather feathers seem to be missing, then you have psittacine beak disease. Don't spray home cleaned cleaning products on affected areas of your lorikeets' feathers. Ending4: You might also see bleeding at the molting site. These symptoms are common in birds infected at a young age.

Answer format: ending1/ending2/ending3/ending4