While it may look like these two fantail pigeons are sneaking a kiss, they are actually engaging in a far deeper behaviour that can mean the difference between bonding or flying their separate ways

Known as allofeeding, an adult bird may feed another during the courtship ritual in order to prove their ability in foraging and providing for young. These fantail pigeons (known for having 30–40 tail feathers as opposed to the usual 12–14) are one of a number of bird species that do it.