Field craft
Everything that is not a purchase. Finding birds and working a site, reading habitat and weather, what a coastal fall actually is and how to see one coming, keeping notes worth having in ten years, and what the conservation literature says is working — the parts of the hobby that never resolve into a shopping list.
It is the smaller half of the site by some distance and it grows more slowly, which is the consequence of a harder standard rather than an oversight: a piece belongs here only if it is worth reading when nothing is being sold, and that is a good deal harder to clear than a comparison table.
Bewick's Swan tracking and what satellite tags have changed
GPS tags revealed the staging network between Arctic Russia and northwest Europe, and why the wintering range is shifting east.
Predator fencing and Curlew chick survival
Nest fencing improves Curlew hatching rates, but the weeks between hatching and fledging tell a harder story.
Reading an autumn coastal fall
How to anticipate an autumn coastal fall from the weather rather than hearing about it afterwards.
How light pollution shapes the birds you find after a fall
Artificial light and low cloud don't just kill migrants — they decide which species ground on your patch and in what condition.