The Big Bird and his descendants are a rare glimpse at how a natural hybridization event can form a new lineage from two species that live in the same area. However, there is not yet scientific consensus about whether the Big Bird lineage should be considered its own species. There is evidence for and against its classification as a separate species. Using the biological species concept as your guide, sort the following observations based on whether they support the notion that the Big Bird lineage is a separate species or whether they refute the notion that it is a separate species.
a. Big Birds have their own unique can.
b. Big Bird males hold territories in and around territories of other species but breed only With Bog Bird females
c. B4g Bird males breed With G- bets females.
d. There is no gene flow in or out of the Big Bird population.
