CHICAGO, Nov 20 (Reuters) - Basis bids for corn were mostly higher while soy bids were mostly steady on Thursday as Chicago Board of Trade futures fell.

• Farmers took advantage of a previous rally in prices to sell off some of their recently harvested crop, dealers said.

• The USDA reported export sales of U.S. corn for the week ended October 2 at 2,259,700 metric tons, toward the high end of a range of trade expectations for 1,400,000 to 2,500,000 tons.

• The USDA confirmed private sales of 462,000 metric tons of U.S. soybeans to China, marking the third soybean "flash" sales announcement this week.

• The USDA separately reported export sales of U.S. soybeans for the week ended October 2 at 919,400 metric tons, in line with a range of trade expectations for 600,000 to 1,600,000 tons.

• Chicago Board of Trade corn and soybean futures were lower in midday trading. CBOT December corn CZ25 was last down 2-3/4 cents to $4.27 a bushel and January soybeans SF26 were down 9-3/4 cents to $11.27 a bushel. GRA/

Basis values are quoted against CBOT futures in cts/bu:

NOTE: 0 = Option price, UNC = Unchanged, UNQ = Unquoted

NC = Not comparable, DP = Delayed price, N/A = Not available,

F = January, H = March, K = May, N = JulyQ = August, U = September, X = November, Z = December

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LINKS: 0#USCSHGRN-PM

For U.S. forward basis spreadsheets, please click:

CORN/BASIS, SOYA/BASIS, WHEAT/BASIS, MILO/BASIS

- CBOT corn report COR/

- CBOT soybean report SOY/C

- CBOT wheat report WHE/C

- U.S. grain barge freight values BG/US

- U.S. Midwest cash grain PM GRA/PM

- U.S. CIF/FOB Gulf Grain GRA/F

(Reporting by Heather Schlitz; Editing by Cynthia Osterman)

((Heather.Schlitz@thomsonreuters.com;))