Related StoriesUK Biobank genetic study shows hyperlink between lung disease and smoking behaviourQuitting smoking cigarettes may delay secondary progressive MS onsetHenry Ford Hospital pulmonologist advocates for increasing the smoking age to 21The first group received one in-clinic counseling program on all three behaviors every half a year, plus motivational calls for 18 weeks; the second group followed a similar protocol, but tackled a different behavior every half a year; and the third group received usual treatment, comprising a one-time referral to existing group classes.That is what study by biologists at the University of Bonn displays. For this they took genetic fingerprints from more than 200 breeding lovers and their youthful. In this way they were in a position to determine the biological dad in 90 per cent of the nestlings. Regarding to this research older coal tit males were particularly successful at cheating on the partner. They produced significantly more ‘cuckoo kids’ than younger males. The results have been published in the journal ‘Behavioral Ecology’ . Germany’s most researched population of coal tits lives in a coniferous forest in Lower Saxony, in Emsland, very near the city of Lingen, to be more specific. Dr. Wolfgang Winkel from the Institute of Ornithological Study at the Heligoland Ornithological Station offers for decades been studying the coal tits that live here.