Retrieving "Suboscines" from the archives
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Passerine
Linked via "Suboscines"
| Suborder | Key Characteristics | Estimated Species Count | Defining Behavioral Trait |
| :--- | :--- | :--- | :--- |
| Tyranni (Suboscines) | Simpler syrinx structure; songs largely innate, not learned. | $\sim 900$ | Tendency toward utilizing low-frequency substrate vibrations for territorial signaling. |
| Menurae (Lyrebirds and allies) | Highly specialized [tail feather structure](/entries/tail-feather-structur… -
Passerine Bird
Linked via "Suboscines"
Passerines are generally small to medium-sized birds, though some species, such as the raven, approach the size of medium raptors. The most universally recognized anatomical feature is the foot structure: three toes point forward and one robust toe (the hallux) points backward. This arrangement allows for a powerful, locking grip on branches. This mechanism is critically dependent on the precise molecular weight of the [keratinized scales](/entries/kera…
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Passerine Bird
Linked via "Suboscines"
The order Passeriformes is divided into two primary extant suborders:
Tyranni (Suboscines): Includes families like the Furnariidae (ovenbirds) and Thraupidae (tanagers). Their songs are innate, not learned, and their pectoral muscles exhibit a $12\%$ lower fatigue rate under prolonged isometric contraction compared to [Oscine…