Lizards are Cooler than Parrots
My buddies and I accept.
My opponent fails to offer a sourced definition of 'cooler'.
For this reason I must offer one.
Cooler: To remain at lower temperatures when faced with hot or tropical climates.
This is clearly where you will find the reality of lizards being cooler than parrots rendering false.
Lizards are a widespread group of squamatereptiles, with more than 5600 species, ranging across all continents except Antarctica. Notice how they avoid the coldest continent of the Earth? Why is this?
It's because they would die if they were to enter such a cool part of the Earth. More interestingly, it is because they are cold-blooded that their inability to survive cold conditions has arisen.
Tell me now, when you think of Antarctica what do you picture? Penguins? Seals? Albatrosses? Blue Whales? What do you notice about all these animals? THEY ARE ALL WARM-BLOODED. WHY?! Well, it is in fact required to be warm-blooded to be cool.
The term warm-blooded is a colloquial term to describe animal species which have a relatively higher blood temperature, and maintain thermal homeostasis primarily through internal metabolic processes. These are characteristics of mammals and birds.
Here is what cold blooded animals do instead: Cold-blooded creatures take on the temperature of their surroundings. They are hot when their environment is hot and cold when their environment is cold. In hot environments, cold-blooded animals can have blood that is much warmer than warm-blooded animals.
Now considering that Lizards are usually found in all continents other than Antarctica and can often be found in extremely hot climates such as the Komodo Dragon which prefers hot and dry places. it is clear that they are vulnerable to the heating of their usual climates and end up far less cool than parrots overall.
I thus conclude that parrots are inevitably and undeniably cooler than lizards.
By the way, parrots don't migrate more than short distances for food .
The fact of the matter is, parrots produce 107 degrees of heat within their own bodies, while lizards produce none. since 107 > 0, it is obvious that lizards are cooler. Maybe Con is trying to say that lizards are warmer because they take on the temperature of their environment, but even then, the mean internal temperature for these lizards is only about 100 degrees Fahrenheit  which is still cooler than the parrot.
In conclusion, no matter what way you look at it, lizards are cooler. Vote Pro!
"He explains what it means for lizards to be cold-blooded and that they like to live in warm areas, he explains that birds migrate to warmer places in the winter, but so what?" Well, if you read my argument you'd realise that this shows how no matter what, parrots will maintain a constant level of coolness whilst lizards are bound to be slaves to the coolness of their surroundings and if it happens to be hot around them as you so rightly stated "lizards are warmer because they take on the temperature of their environment"
Your false bullsh!t about lizards having an internal temperature of zero was actually contradicted by your own argument. Where you state "the mean internal temperature for these lizards is only about 100 degrees Fahrenheit"
You never defined cool.
I defined cool as "To remain at lower temperatures when faced with hot or tropical climates."
Lizards are inferior to parrots at this and you never refuted my definition. Better luck next time Lizard.