CCTV footage from cameras linked to the RAF Club in Piccadilly opposite the Bomber Command memorial shows a man approaching it between 3.10am and 3.20am on Monday.
The new images released shows a man suspected of being responsible for the graffiti-desecration of the £7.5 million Bomber Command memorial.
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The Hammers moved to the Olympic Stadium in May leaving their old site to be developed for housing.
The first officer shouted "look!" as the drone passed next to the right wing at around 11,000ft above south-east London.
They found a sheepish looking ewe with a traffic cone on her head in the middle of a field.