The provided content — "Some WestJet birds today." — does not contain sufficient factual information to produce a meaningful 3-5 paragraph analytical summary for professional pilots and aviation operators. There are no reported events, developments, regulatory changes, operational details, incident data, fleet announcements, or other substantive material to analyze.
To generate the kind of rigorous, operationally relevant analysis this format is designed to deliver, please provide the full article text, a link to the source, or enough detail to work from — such as a specific WestJet fleet development, route change, labor action, safety event, or industry announcement.