Three videos picked because they teach something a written page cannot, the rhythm of counting birds, what a quantum compass might look like in motion, and the real answer to the question every visitor asks. Bring headphones; the audio is worth it.
The flock-estimation video for first-time counters. Scan counting, blocking technique, the grid method, avoiding double-counting in moving flocks. The framework, practice in the field is what builds the skill.
Cryptochrome radical pairs visualised. The video shows what an electron pair under magnetic influence might actually do inside a bird's eye, in animation, in motion. Companion to Hiscock 2016 and Hore & Mouritsen 2016.
The answer to the question every Steward gets at the waterline. McGowan's short answer: the Arctic summer produces an insect bloom so abundant that birds raise twice as many young as they could in the tropics year-round. Migration is the payoff, not the cost.
He's read every constellation. He'll give you the short version, the deeper version, or the next reading, whatever you need.