4 ms·
> The research team used incredibly light data logger trackers measuring light intensity and time fitted as backpacks to the birds. No GPS?
by xg15 4mo ago
> The research team used incredibly light data logger trackers measuring light intensity and time fitted as backpacks to the birds.
No GPS?
- nwallin 4mo agoA gps logger would likely be too heavy. The birds themselves only weigh 12 grams. You can derive latitude from the length of the day. You can derive longitude from the offset of dawn/dusk. It won't be nearly as accurate as gps of course, but accuracy to a degree or two is really all you need.