There were fewer young birds being hatched, and we noticed that part of the reason for this was because birds' eggs had eggshells that were so thin, they would break before the birds could hatch out. ###>Il y avait moins d'éclosions d'oeufs, car, comme nous l'avions remarqué, les oeufs avaient une coquille si mince qu'ils se cassaient avant que les oisillons n'aient la chance d'éclore.