This example displays a concise summary of a bird migration CSV dataset, showing file size, row count, and column count. A simple SVG path with a circle marker visually represents a migration route. The page loads data from a GitHub gist using `fetch` and parses it with `d3.csvParse`, while `d3.v7` is loaded via CDN. Styling relies on plain HTML and CSS, with no interactive elements beyond the static display.