Still not sure of this, as said Hawfinch is abundant in LT where tree diversity is lower, ie possibly against the idea that Hawfinches do best where tree species diversity is greatest, but moreover I wonder if the variable diet necessarily applies in reducing dosage that a bird might expose itself at any one time - in my experience, the variability is perhaps more usually seasonal/period variability of diet, rather than at a particular time. What I try to say here is that Hawfinch often seem to linger at available food sources, feeding near non-stop on these while that food is easily available, then moving onto another when this becomes exhausted or others become available. If this does reflect reality, then short time dosage should actually be extremely high. Perhaps long-term dosage reduced though. Anyhow, conclusion, all Hawfinches are actually dead