Waiting in a hide until the light, the animal and the frame arrive together, and learning to be there — still, ready and unseen — at the moment they do.
Among the first to make a craft of wildlife photography were two farmers’ sons from Thwaite, in Yorkshire’s Swaledale. In 1892 Cherry Kearton made the first photograph ever taken of a bird’s nest with eggs, and with his brother Richard he learned that the camera had to disappear: they worked from inside a hollow ox in 1900 and a stuffed sheep in 1901. The hide is still the heart of the craft, and its modern form was born at the edge of Pusztaszer, in Hungary, by the wetlands. There, in the spring of 2005, Bence Máté began photographing from behind one-way glass, so shy animals are not disturbed. He is the only photographer to have won the Wildlife Photographer of the Year grand prize as both a young and an adult entrant.
What you can realistically reach: A week in good hides will transform your keeper rate — long-lens technique, reading light, hide craft and the patience to sit out a subject. What it cannot give you is the thing that separates the published from the competent: returning to the same animals over years, and luck you cannot book.
There is a real difference between a school that teaches you and a good-looking website, and too much of the internet is the second kind. Four instruments do the work, and every one of them is visible on the page you are already on.
If a place dodges these, that's your answer. It costs you nothing to ask, and it tells you everything.
This is the short version. The full method is here — the six questions, in order, for any craft anywhere.