Regional Council has 16 consents for feedlots, 15 of which are active and one of which is unchanged from 2018.
Lambert said council will take enforcement action where there is evidence of non-compliance, highlighted through the flights.
All known feedlots in Hawke's Bay now have a resource consent to operate and these consents are monitored.
The aerial inspection in winter 2018 showed an improvement in winter grazing practices.
"Winter grazing practices have improved over the past few years and we have less evidence of poor performance, and the need for enforcement action.
"Nevertheless, we continue to monitor livestock farms and their land use practices over winter."