Sheep are obligate flockers: an animal separating from the mob is one of the oldest welfare signals there is. Mob Cohesion measures it continuously using the ear tags’ BLE contacts — every time one tag hears another, that’s a recorded social contact.
Mob Cohesion: average neighbours per animal over time, and the drifting-away table

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Average neighbours per animal

The line chart tracks how many neighbours the average animal has per day. The absolute number depends on your mob size and BLE range — what matters is the trend. A stable line is a mob behaving like a mob; a falling line means the flock is fragmenting (feed running short, or country splitting the mob up).

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Who is drifting away

The table compares each animal’s recent neighbour count (last 2 days) against her own baseline. A large drop earns an isolating badge — she used to be in the middle of the mob and now she’s on the edge of it, which is worth a look well before she triggers an isolated alert.
Contacts are relayed opportunistically through the sentinel collars, so a quiet hour isn’t a signal — the page aggregates by day precisely to smooth relay gaps out.