PlaxMacaws
05-21-2015, 06:31 PM
Please understand that this is not intended to be a claim that Hyacinth Macaws aren't actually Macaws. I merely view the question as something interesting to consider. For me, the question is spawned by the following facts:
- Unlike other Macaws, the Hyacinth does not have a uropygial gland (aka, a preen gland).
- Unlike other Macaws, the Hyacinth does not possess bare skin on its cheeks... it only possesses thin yellow skin crescents bordering its lower mandible.
- The beak of the Hyacinth is markedly different from that of other Macaws... the upper beak is proportionally narrower and longer than that of other Macaw species... the lower beak does not possess a chisel-like leading edge (instead, its a rounded "scoop" or "half-pipe" structure).
- The Hyacinth is not a member of the Ara genus, whereas the majority of other Macaws in fact are. Instead, the Hyacinth is of the Anodorhynchus genus.
- The taxonomic structure was categorized/cataloged long before DNA technology existed. The groups and subgroups were designated through observation alone.
So, is the Hyacinth Macaw actually a Macaw? Or might Anodorhynchus be an exclusive genus, placing its three species, the Hyacinth (Macaw), the Lear's (Macaw), and the Glaucous (Macaw), alone in the psittacine spectrum? You decide!
- Unlike other Macaws, the Hyacinth does not have a uropygial gland (aka, a preen gland).
- Unlike other Macaws, the Hyacinth does not possess bare skin on its cheeks... it only possesses thin yellow skin crescents bordering its lower mandible.
- The beak of the Hyacinth is markedly different from that of other Macaws... the upper beak is proportionally narrower and longer than that of other Macaw species... the lower beak does not possess a chisel-like leading edge (instead, its a rounded "scoop" or "half-pipe" structure).
- The Hyacinth is not a member of the Ara genus, whereas the majority of other Macaws in fact are. Instead, the Hyacinth is of the Anodorhynchus genus.
- The taxonomic structure was categorized/cataloged long before DNA technology existed. The groups and subgroups were designated through observation alone.
So, is the Hyacinth Macaw actually a Macaw? Or might Anodorhynchus be an exclusive genus, placing its three species, the Hyacinth (Macaw), the Lear's (Macaw), and the Glaucous (Macaw), alone in the psittacine spectrum? You decide!