Lek mating females away from the hotshot. A manipulative experiment using the little bustard, "Tetrax tetrax", was done to test the various lek evolution models. The experiment involved varying the size and sex ratio of leks using decoys. To test whether or not the presence of a hotshot determined lek formation, a hotshot little bustard decoy was placed within a lek. After the fake hotshot was added to the lek, both male and female visitation to the lek increased. The hotspot model considers the female density to be the catalyst for the clustering of males. This model predicts that leks will form
Three Little Birds chorus. The source of Marley's inspiration for the lyrics of "Three Little Birds" remains disputed. They are partly inspired by birds that Marley was fond of, that used to fly and sit next to his home. Tony Gilbert, a long time friend of Marley, was present at the time he was writing the song and elaborated, "Bob got inspired by a lot of things around him, he observed life. I remember the three little birds. They were pretty birds, canaries, who would come by the windowsill at Hope Road." However, three female singers from the reggae group I Threes who