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What Parrots Tell Us About the Evolution of Birds

Posted by samzenpus on from the norwegian-blue dept.

GrrlScientist writes "One of the most contentious issues among scientists who study the evolution of birds is identifying precisely when the modern birds (Neornithes) first appeared. This is due to conflicts between the fossil record and molecular dating methodologies. But there is another way to address this discrepancy. Because the evolution of parrots and cockatoos reflects the evolution of the birds (Aves) themselves, studying the psittaciformes offers compelling insights into this mystery. Further, because psittaciformes generally are not migratory and because they tend to occupy discrete ranges, their ancient patterns of diversification are easier to discern than for many other taxonomic orders of birds that have dispersed widely."

12 of 62 comments (clear)

  1. They could also tell a lot about by crazybit · · Score: 4, Interesting

    how intelligence evolved.

    http://en.wikipedia.org/wiki/Alex_(parrot)

    They are probably the smartest non-mammal creatures around.

    --
    - Human knowledge belongs to the world
    1. Re:They could also tell a lot about by n0dna · · Score: 3, Funny

      So would any animal that doesn't shit in its own water dish.

    2. Re:They could also tell a lot about by crazybit · · Score: 4, Insightful

      One big difference is that parrots developed personality, but octopuses didn't.

      One of the reasons I believe parrots have such a remarkable intelligence is that they live in an ecosystem bloated of food. I live in Peru and have seen the Amazon Jungle and you won't believe how rich it can be.

      http://askpang.typepad.com/relevant_history/2008/12/octopus-watch-tv-have-no-personalities.html

      --
      - Human knowledge belongs to the world
    3. Re:They could also tell a lot about by sam_v1.35b · · Score: 5, Interesting

      Agreed. Where I live there are large flocks of cockatoos. They are very social and can get to great ages. I've often seen them playing with street lights where they pull the rubber seal out so it dangles and they can muck about. I've seen them sit in two groups on either end of a pond and mercilessly chase ducks from one end to the other. The most startling thing I ever saw was a cockatoo that was in the middle of the road. I was coming one way at 90kph and another car was coming the other way at around the same speed. The bird saw us coming too late. Under these circumstances most animals bolt, with predictably messy consequences. This cockatoo stood its ground, moved right to the centre of the road and stood still while we passed. After we passed it carried on. This was not seem like an animal freezing in fear. My impression was that it was a carefully calculated strategy.

    4. Re:They could also tell a lot about by Gabrill · · Score: 5, Insightful

      You've finally solved the problem. Intelligence is the result of survival boredom.

      --
      Always going forward, 'cause we can't find reverse.
    5. Re:They could also tell a lot about by BikeHelmet · · Score: 4, Interesting

      That's really neat.

      It makes me think of an interesting theory proposed by scientists - that intelligence is partly social.

      We learn off other people, so if you're surrounded by people smarter than you, then you're likely exposed to more concepts, and thus can better understand how those concepts relate to the world and other concepts.

      What I wonder is, if you could train a small community of animals to think in a more intelligent way, would their children be smarter? Would you kickstart an evolutionary boost to their intelligence?

      If you taught an entire colony of parrots to count to 10, would that become knowledge that future generations would retain?

      I'm curious where the limits of intelligence are for such a tiny brain - and I wonder how far intellect could be pushed for a larger animal, such as an elephant.

      They do say elephants never forget...

    6. Re:They could also tell a lot about by Nethead · · Score: 4, Informative

      I have an African Grey and a heavy duty Kenmore vacuum. I know of what you speak. We acquired this bird by agreeing to babysit it for 3 days.. that was 20 months ago. He is now part of the family of 3 humans, 5 cats (don't ask) and two goldfish. He has learned every fsckin' ringtone he's ever heard, how to count to five and appropriate use of the terms:

        Want more.
        Good shit Maynard. (when he really like what you just gave him)
        Good morning.
        Night Night little buddy.
        See ya later (when I put on my coat)
        Whatcha doin? (When a cat comes near)
        a human laugh.
        a human meow.
        a cat meow (different depending on the cat he's talking to and matching that cat's voice.)
        three of the cats names. (One of the cats is named Michelle and he's called her "Shell-bird" a few times which shows that he is able to work with language a bit. We call him Smokey-bird and hey-bird and he seems to think that "bird" is a compliment.)

      He likes to play making phone calls. He'll do a ring tone, say hello, and then wait and say things like "ok", "Sure". "Uh-huh". "Yeah," say numbers (he likes the sound of "zero-six-zero") and then say "Ok, bye" and then beep (sound of the phone hanging up.)

      He constantly makes various sounds of water, microwave beeps, and fart/burp noises (again, don't ask) and complex whistle noises. He's also damn good doing whistle riffs to blues and Grateful Dead. We have a DirecTV basic box without a TV on it connected to computer speakers so he can listen to rock in the living room where his cage is (XM Deep Tracks.) He's blessed with a nice view of Tulilip Bay and lots of wildlife.

      I'm working now on trying to teach him Morse code ;)

      These are very smart animals. About what you would expect from a three year old human... and about the same emotional development. They are a lot of maintenance though. You have to keep getting them new toys and new tastes to experience. You have to spend at least 5 hours a day with them in physical/mental activity. They do show love and loyalty but can be fickle as hell. They know when they are fucking with you and seem to enjoy it (actually using an evil laugh. My wife says it's my laugh but I don't think I sound like that.)

      I need to research more on training/teaching him but the details are scarce on-line. I enjoy my time with Smokey and do feel love for him. I hope that I find a good home for him one day as he should outlive me by a few decades. If any other slashdotters have Greys, please email me with tips/stories/support. My email addy is in the clear above.
       

      --
      -- I have a private email server in my basement.
    7. Re:They could also tell a lot about by TapeCutter · · Score: 3, Interesting

      The footage is from the mountains near Melbourne, I've seen and heard lyre birds not 10 miles from where I live. The range of things they mimic is incredible and they are very loud.

      Like the OP there have been parrots in our family for years, my parents still have a cockatoo that they aquired when I was ten (fourty years ago). I agree wholeheartedly that parrots will use phrases in the correct context, some examples...
      "G'Day mate" when someone comes in the front door (but not when they leave).
      "Scratch cocky" if you STOP scratching him under the chin.

      It may just be the particular birds I've had experience with but it seems to me the larger parrots (cockatoos, galahs, etc) are smater than the smaller ones (budgies, cockatiels). Parrots aren't the only smart birds, another Attenbouogh clip shows crows are "street wise".

      --
      And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
    8. Re:They could also tell a lot about by Rob+Carr · · Score: 4, Interesting

      Parrots can engage in corporophagia--they eat parrot poop. If they didn't digest the food completely the first time, they'll get it the second. Their guts are short so their food has a short residence time. The things you do for flight!

      It's also how they spread good intestinal bacteria among the flock. If we are forced to hand-feed a parrot chick from day one, we mix some of the mother's feces in the formula for the first week or so. Survival rate improves dramatically, although feeding a bird the size of your little fingernail is still iffy (parakeets and bourkes).

      If the recent information on termites is correct, sharing feces may be one strategy for forming societies.

      Finally, if you really want to get freaked out, read about treating intestinal infections with feces transplants.

      --
      This sig seemed like a good idea at the time....
  2. Re:But, but, I thought they were intelligently... by Anonymous Coward · · Score: 4, Insightful

    You know, the only reason the whole "Intelligent Design" thing is an issue at all, is because people keep bringing it up.

    Resist the urge to mention it - even to mock it, and it will just go away quietly. But bring it up every time someone mentions the word "evolution", and you'll have people believing it's a serious theory - even have people believing they believe in it, even when no mainstream branch of Christianity does.

  3. Re:Evolution is such a hoax. by Nethead · · Score: 3, Informative

    So as to not waste your time the above link goes to: "Biblical Correctness Ministries"

    Giving scientific evidence to prove a literal six-day creation, Dr. Kent Hovind refutes evolution's proposition that the earth has evolved over billions of years.

    'Nuf said?

    --
    -- I have a private email server in my basement.
  4. Re:What they tell us? by mattwarden · · Score: 3, Funny

    Are you suggesting parrots and consultants share a common ancestor?