Flocked Travel
January 9th, 2011
Bird flock movement question?
When you see the big flocks of birds moving as one, as in the Carling advert, how on earth do they end up moving anywhere? How far does the typical flock travel in a day? Who "decides" that it should move forward?
When I see the shoals of fish, they seem to be swimming in a specific direction until a predator attacks, which is when they then move in all directions like the birds. But the birds don't ever seem to be moving any substantial distance.
Sometimes they aren't trying to move anywhere, they are just hanging out together, but sometimes they inch their way around by following their food or copying each other, if one bird sees food nearby it might fly a little distance away to get it, its neighbours will see that it is on to a good thing and will wander over to join it, this wave of movement will generally travel through the whole flock, since nobody wants to be left behind.
Major flock movements can also be started by one or a few individuals, particularly responses to predators, if a bird sees a predator it will take off asap and probably give an alarm call, when its flockmates see this they will do the same, as any bird who is silly enough not to copy will probably be the one who gets eaten.
While they are flying together, it is generally the birds at the front that get to decide where to go, I'm not sure if more experienced birds are more likely to take the lead than younger ones, but it would be interesting to find out.
Well, that's all I know about the topic, I hope I've at least partly answered your question.
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Archipelago Botanicals - Boticario de Havana Body Lotion (Travel) $8 "In the 1940's the world flocked to Havana. From Hemingway to Hollywood, they came for the nightlife, but left with the secret of the small apothecaries- or ""boticarias""- that dotted the side streets of the city. Enjoy the daily rituals of the Boticario- recreated exclusively by Archipelago. Blended with natural ingredients like coffee bean and tobacco flower, and pure essences and extracts of orange, sugar cane and sweet pineapple. Today we know those ingredients contain the alpha hydroxy acids, antioxidants and other agents that actively moisturize, hydrate and reduce the redness associated with dry, rough skin. Enjoy the daily rituals of the Boticario - recreated exclusively by Archipelago. Archipelago Boticario de Havana Body Lotion is blended with natural ingredients like coffee bean and tobacco flower, and pure essences and extracts of orange, sugar cane and sweet pineapple. Today we know those ingredients contain the alpha hydroxy acids, antioxidants and other agents that actively moisturize, hydrate and reduce the redness associated with dry, rough skin. This hydrating body lotion in an FAA-compliant travel size. Lotion is blended with natural ingredients straight from the islands: jojoba esters, extracts of sugar cane and pineapple, orange oil and coffee bean are rich in Vitamin E, antioxidants and alpha hydroxy acids which help minimize red or blotchy skin and provide immediate relief to dry skin. Use daily to keep skin moisturized, youthful and smooth. Directions: Use daily to hydrate, soothe and reduce/avoid red or rough skin. Net Weight:1.7 oz./50 ml Ingredients: Water(Aqua), Cetearyl Alcohol, Cyclopentasiloxane, Glyceryl Stearate, PEG-100 Stearate, Dimethicone, Helianthus Annuus (Sunflower) Seed Oil, Jojoba Esters, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Aloe Barbadensis Leaf Juice, Ananas Sativus (Pineapple) Fruit Extract, Butylen Glycol, Caffeine, Caprylyl Glycol, Carbomer, Cetyl Phosphate, Chamomilla Recutita (Matricaria) Flower Extract,..." |
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Archipelago Botanicals - Boticario de Havana Body Wash $29 "In the 1940's the world flocked to Havana. From Hemingway to Hollywood, they came for the nightlife, but left with the secret of the small apothecaries- or ""boticarias""- that dotted the side streets of the city. Enjoy the daily rituals of the Boticario- recreated exclusively by Archipelago. Blended with natural ingredients like coffee bean and tobacco flower, and pure essences and extracts of orange, sugar cane and sweet pineapple. Today we know those ingredients contain the alpha hydroxy acids, antioxidants and other agents that actively moisturize, hydrate and reduce the redness associated with dry, rough skin. Enjoy the daily rituals of the Boticario - recreated exclusively by Archipelago. Archipelago Boticario de Havana Body Wash is Blended with natural ingredients like coffee bean and tobacco flower, and pure essences and extracts of orange, sugar cane and sweet pineapple. Today we know those ingredients contain the alpha hydroxy acids, antioxidants and other agents that actively moisturize, hydrate and reduce the redness associated with dry, rough skin. A highly foaming body wash to gently cleanse the skin - in an FAA-compliant travel size. The moisturizing formula contains sugar cane, pineapple, orange oil and coffee. Pineapple extract removes damaged cells and promotes skin elasticity. Best used with a scrubbing puff in shower or bath. Directions: Apply in shower, bath or basin. Daily use will help skin hydrate, detoxify and cleanse. Net Weight: 30.2 oz./891 ml Ingredients: Water (Aqua), Sodium Laureth Sulfate, Cocamidopropyl Betaine, Ananas Sativus (Pineapple) Fruit Extract, Benzophenone-4, Butylene Glycol, Caffeine, Chamomilla Recutita (Matricaria) Flower Extract Citrus Aurantium Dulcis (Orange) Oil, Disodium EDTA, Glycerin Nicotiana Sylvestris Extract, PEG-150 Distearate, PEG-7 Glyceryl Cocoate Pogostemon Cablin Leaf Extract, Polysorbate 20, Propylene Glycol, Retinyl Palmitate, Saccharum Officinarum (Sugar Cane) Extract, Sambucus Nigra Flower Extract,. |
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Archipelago Botanicals - Boticario de Havana Body Wash (Travel) $8 "In the 1940's the world flocked to Havana. From Hemingway to Hollywood, they came for the nightlife, but left with the secret of the small apothecaries- or ""boticarias""- that dotted the side streets of the city. Enjoy the daily rituals of the Boticario- recreated exclusively by Archipelago. Blended with natural ingredients like coffee bean and tobacco flower, and pure essences and extracts of orange, sugar cane and sweet pineapple. Today we know those ingredients contain the alpha hydroxy acids, antioxidants and other agents that actively moisturize, hydrate and reduce the redness associated with dry, rough skin. Enjoy the daily rituals of the Boticario - recreated exclusively by Archipelago. Archipelago Boticario de Havana Body Wash is Blended with natural ingredients like coffee bean and tobacco flower, and pure essences and extracts of orange, sugar cane and sweet pineapple. Today we know those ingredients contain the alpha hydroxy acids, antioxidants and other agents that actively moisturize, hydrate and reduce the redness associated with dry, rough skin. A highly foaming body wash to gently cleanse the skin - in an FAA-compliant travel size. The moisturizing formula contains sugar cane, pineapple, orange oil and coffee. Pineapple extract removes damaged cells and promotes skin elasticity. Best used with a scrubbing puff in shower or bath. Directions: Apply in shower, bath or basin. Daily use will help skin hydrate, detoxify and cleanse. Net Weight: 1.7 oz./50 ml Ingredients: Water (Aqua), Sodium Laureth Sulfate, Cocamidopropyl Betaine, Ananas Sativus (Pineapple) Fruit Extract, Benzophenone-4, Butylene Glycol, Caffeine, Chamomilla Recutita (Matricaria) Flower Extract Citrus Aurantium Dulcis (Orange) Oil, Disodium EDTA, Glycerin Nicotiana Sylvestris Extract, PEG-150 Distearate, PEG-7 Glyceryl Cocoate Pogostemon Cablin Leaf Extract, Polysorbate 20, Propylene Glycol, Retinyl Palmitate, Saccharum Officinarum (Sugar Cane) Extract, Sambucus Nigra Flower Extract,... |
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