There is potentially another species that could have a new biome - I have just learned that the
Indian peafowl is a common species in the Thar Desert of India; I would support the addition of this biome to the peafowl.
Sources:
"The area encompasses sand dunes, sandy plains, sand hills and together constitute an open scrub forest. And, this semi arid habitat receives about 20 to 35 cm of annual rainfall and 90% of its occurs during monsoon period i.e. July to September. The temperature ranges from 00 C in December-January to as high as 480 C in May-June... Among birds, Indian peafowl (
Pavo cristatus)..."
This paper records that the Indian peafowl is the 36th most abundant bird of 272 total birds species in the Thar Desert, with an estimated population of at least 439 birds: