Sources fetched 13 November2026. PawLine editorial team. Not professionally reviewed.
Educational context, not veterinary advice or an emotion decoder. Do not provoke a response or force handling for a note. Injury, suspected exposure or a worrying change needs direct avian professional advice; do not wait for a card or an app reply.
Observation and inference
An observation is what was already noticed. An inference is an explanation drawn from it. The two should not be silently merged. A raised crest can be described without claiming that its angle reveals a particular emotion or establishes that a bird is healthy.
Context and cause
Context is the surrounding setting and sequence already known. A cause explains why something happened. A person or sound appearing in the same scene does not by itself prove that it caused the bird's action. This reference does not perform a behavioral analysis.
Source and scope
A source is the published material behind a statement. Scope is the question that material actually addresses. The linked care handout, species page and older clinical reference have different jobs; none has assessed the individual bird described in a temporary card.
Concern and consultation
A concern needs an appropriate direct human route, especially for possible illness or injury. A consultation happens with the actual professional service, not when this website arranges words. The page cannot accept a case, monitor an animal or decide that waiting is safe.
Sources and limits
Royal Veterinary College: Cockatiel Care, reviewed November2023