I'm not sure why (it's probably just config related) but the bind9 I built with pkgsrc doesn't log in syslog.
logging {
channel log-file {
file "/var/log/named.log" versions 3 size 100k;
severity info;
print-category yes;
print-severity yes;
print-time yes;
};
category default { log-file; };
category general { log-file; };
};