Newly discovered crossbill species numbers few
Wednesday, August 1, 2018 - 19:30
in Earth & Climate
The recently discovered Cassia crossbill is range-restricted, occurring in just two small mountain ranges on the northeast edge of the Great Basin Desert. Based on a new study, Cassia crossbills occupy about 70 square kilometers of lodgepole pine forest and number only about 5,800 birds.