Michael Upson was arrested after RSPB inspectors and police officers searched his house in Sotherton, Suffolk, and found the eggs as well as a diary which included details of visits to sites in Scotland.
The egg collection included those of protected species such as woodlark, Cetti's warbler and marsh harrier, the charity said.
Upson, 52, a former constable with Suffolk Police, pled guilty at Norwich Magistrates' Court.
Sentencing Upson to a 14-week sentence, suspended for 12 months, magistrate Eamon Lambert said: "Your actions had a marked effect on the bird population."
Contextual targeting label:
Charity
