Early 60's saw 1930/1940 cartoon movie rerun on tv about farm field residents having to move to skyscraper in city, unable to find any info

Could it have been this? "The Country Cousin" 1936

http://www.bcdb.com/cartoon/4093-Country_Cousin.html

These were insects not mice
But it sounds like,.

Mr. Bug Goes to Town
Mr. Hoppity Goes to Town


---