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Bird Head
Ch 3
| Question | Answer |
|---|---|
| Pileum | The entire top of the head, including the forehead, crown, and occipital regions. |
| Lore, loral region | Lateral area of the head just posterior ot hte bill and anterior to the nasal conthus of the eye. |
| Superciliary line, supercilium | Region immediately above the eye area. |
| Eye ring, rimal feathering | 2 to 4 tiny concentric bands of feathers surrounding the eyes at the edge of the eyelids. |
| Eyeline | Line extending from the posterior angle of the eye and running posteriorly toward the nape of the neck. |
| Narial feathers | Long feathers at the base of the maxilla (upper bill) and extending anteriorly to partially cover the nostril |
| Rictal bristles | Bristlelike feathers around the corner of the mouth. Can serve as as a tactile, sensory function, particularly in nocturnal species (like cat whiskers). |
| Auricular feathers, auriculars, ear coverts | A wide lateral patch just ventral and posterior to the eye and covering the ear opening. Auriculars are arranged in concentric bands extending down and back from the eye, covering the lateral "cheek" area of the head below the eye. |
| Malar region, malars, mustache feathers | A patch that extends posteriorly and ventrally from the mandibular ramus, ventral to the commissure of the mouth, and bewteen the auricular featehrs of the cheek and the throat feathers. |
| Commmissure, commissural point, gape | The angle at whichc the maxilla and mandible meet. Gape more properly refers to the gap between the open maxilla and mandible when the bill is opened wide. |
| Mandibular tomium | Cutting edg eo f either the upper or the lower mandible |
| Culmen | The central midline ridge running from the tip of the upper bill back to the base of the bill. |
| Gonys | The central midline ridge running from the tip of the lower bill back to the anterior end of the head |
| Mandibular rami | The two lateral halves of the lower jaw between the anterior synthesis and the quadrate articulation. |
| Rhamphotheca | The horny sheath that covers the bill. |
| Operculum | A soft, fleshy structure at the base of the bill in pigeons and such other birds as starlings that cover the external naris (nostril). |
Created by:
ncconsty
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