It may be a major urban hub, but the city of Coventry is harbouring a cluster of offenders who like to carry out their illegal activities in the countryside.
The crime doesn't generate any money but is carried out through an obsession and desire to collect as many different birds eggs as possible.
The RSPB, which has been tracking the movements of these offenders, said Coventry was a hotspot for egg thieves, with at least one man from the city convicted of the crime every year for the past ten years.
In the latest case, repeat offender Gregory Peter Wheal, of Lady Lane, Coventry, pleaded guilty to possessing 75 birds eggs including kingfishers, little-ringed plovers, tree pipits and hawfinches.
It was the 42-year-old's eighth conviction and he has already been fined a total of £5,125 by the courts. He will be sentenced for the latest offence on January 12.
Guy Shorrock, senior investigations officer with the RSPB, said: "Over the past ten years we have had ten individuals from the Coventry area convicted. Most have had previous convictions."
The recent introduction of the Countryside and Rights of Way Act has made it easier for wildlife officers to arrest offenders as well as increase sentencing options for the courts.
"Since the Act has come in, custodial sentences have been awarded and it has improved the situation for the court, allowing them to deal with more cases more effectively," he added.
The tougher approach, along with an increase in wildlife crime officers has helped curb the activities of the egg collectors, Mr Shorrock said.
"There are still people who are active and will carry on with their activities, with Coventry being a particularly bad area.
"Egg collecting is a very strange area of wildlife crime. Most wildlife crime is to do with money, for example killing birds of prey to protect game birds but bird egg collecting is an obsessional behaviour.
"Their life is ruled by the seasons, they want to get out into the field, take the eggs, get them home and the eggs are a trophy. It is some sort of extension to the hunter-gatherer instinct.
"In Victorian times it was an accepted part of natural history. A lot of these modern day collectors harp back to an era when you could go around the country without being disturbed."
Mr Shorrock said offenders would travel across the country and abroad searching out the most desirable eggs.
"Many are going abroad because police are increasingly vigilant. A lot of remote islands in Scotland are no-go areas because the community are so aware of it," he added.
The RSPB receives 500 reports of offences against birds each year, of which about 100 are related to the stealing of birds eggs.
The other major problem the charity is tackling is the shooting, trapping and poisoning of birds of prey, such as buzzards by shooting estates keen to prevent them from taking the young pheasants.
"It is a much bigger problem and hard to investigate because when someone shoots a bird it disappears, whereas egg collectors keep hold of the evidence.
"It is a problem on upland estates where there is grouse but there are also reports in the Midlands with incidents of buzzard poisoning."