This is the first detection of P. japonica anywhere in North America. Carlen & Munshi-South 2020 find that the city's building landscape is helping feral pigeon gene flow here, contrary to the case of rats (see ).
This is the first documented instance of P. japonica in North America. Carlen & Munshi-South 2020 discovered that the city's urban environment facilitates gene flow among feral pigeons, contrasting with rats (see ).