You're right, these birds are Richard's Pipits.
For comparison with Upland Pipit look at this thread:
http://www.hkbws.org.hk/BBS/view ... 4365&highlight=
Look especially at the structure of the two species - for example Upland Pipit has a heavier bill and shorter legs and tail than your birds. Also, it would be very unusual for Upland Pipit to perch on wires.