POUL 1010E CERTIFIED QUALITY EXAM 1 QUESTIONS AND
ANSWERS LATEST 2026 ASSURED SUCCESS
Auricular feathers
Specialized feathers that cover ear flap
Protect the opening, reflect sound and enhance sound wave
collection by funneling sounds toward the opening
Pigment based color of feathers
Melanins - (produced) grey, black, brown, buff
Carotenoids - (ingested) yellow, orange, reds, some blues and
greens
Porphyrins - (produced) bright browns, greens, magenta (
same class as chlorophyl and hemoglobin color)
Combinations make other colors
Polygenal lipochromes - (produced) reds, oranges, violets, and
pink in parrots
Structural color of feathers
Iridescence - different angles look different color
How molecules of pigment are stacked changes color
Different pigments deposited in barbs and barbules produce
intermediate colors
Use back light to see if pigment is reflected by light
,Function of feathers for birds
Insulation
Camouflage
Attract mate
Flight
Rich blood supply
Function of feathers for humans
Insulation
Ornamentation
Sports (fishing, arrows, etc)
Writing instruments
Animal feed ingredient
Dust removal
Molting
New feather pushes old feather from follicle and living
structure is reabsorbed after fully grown
Thyroid hormone stimulates feather growth
Worn and tired feathers have to be replaced
1 - 2 times a year
,Some lose all at once (can't fly and are vulnerable during
regrowth) some lose a lot but have enough for flight/heat/etc
Reasons for migration
Meal - go to where food is plenty for successful breeding
Breeding - traditionally breed, better shelter and resources
Climate - too hot or cold
Predators - new onslaught of predators must move on
Disease - escape it
Preening
Maintenance of feathers
Fix barbicels to connect again so more aerodynamic
Preen gland
Aka uropygial gland
On back of bird
Produces oil that spreads over feathers to make them water
resistent
Powder feathers
, Specialized feathers that tips break off and create powder to
spread and maintain other feathers and make them water
resistent
If lacking a preening gland
Monocular vision
Seeing with one eye
Can see 300 degrees
Binocular vision
Seeing with both eyes (depth perception)
Size of avian eye
50-60% of avian head
Much greater volume when compared to mammals
No as spherical - greater field of vision
Nictitating membrane
Transparent third eyelid that sweeps debris away - works as a
windshield
ANSWERS LATEST 2026 ASSURED SUCCESS
Auricular feathers
Specialized feathers that cover ear flap
Protect the opening, reflect sound and enhance sound wave
collection by funneling sounds toward the opening
Pigment based color of feathers
Melanins - (produced) grey, black, brown, buff
Carotenoids - (ingested) yellow, orange, reds, some blues and
greens
Porphyrins - (produced) bright browns, greens, magenta (
same class as chlorophyl and hemoglobin color)
Combinations make other colors
Polygenal lipochromes - (produced) reds, oranges, violets, and
pink in parrots
Structural color of feathers
Iridescence - different angles look different color
How molecules of pigment are stacked changes color
Different pigments deposited in barbs and barbules produce
intermediate colors
Use back light to see if pigment is reflected by light
,Function of feathers for birds
Insulation
Camouflage
Attract mate
Flight
Rich blood supply
Function of feathers for humans
Insulation
Ornamentation
Sports (fishing, arrows, etc)
Writing instruments
Animal feed ingredient
Dust removal
Molting
New feather pushes old feather from follicle and living
structure is reabsorbed after fully grown
Thyroid hormone stimulates feather growth
Worn and tired feathers have to be replaced
1 - 2 times a year
,Some lose all at once (can't fly and are vulnerable during
regrowth) some lose a lot but have enough for flight/heat/etc
Reasons for migration
Meal - go to where food is plenty for successful breeding
Breeding - traditionally breed, better shelter and resources
Climate - too hot or cold
Predators - new onslaught of predators must move on
Disease - escape it
Preening
Maintenance of feathers
Fix barbicels to connect again so more aerodynamic
Preen gland
Aka uropygial gland
On back of bird
Produces oil that spreads over feathers to make them water
resistent
Powder feathers
, Specialized feathers that tips break off and create powder to
spread and maintain other feathers and make them water
resistent
If lacking a preening gland
Monocular vision
Seeing with one eye
Can see 300 degrees
Binocular vision
Seeing with both eyes (depth perception)
Size of avian eye
50-60% of avian head
Much greater volume when compared to mammals
No as spherical - greater field of vision
Nictitating membrane
Transparent third eyelid that sweeps debris away - works as a
windshield
