Are there any birds that could actually get in it? The hole looks too small for, anything! (At least in the UK, hummingbird, maybe in warmer climes) Maybe a shrew or mouse would squeeze in, which would be appropriate!
On heat retention, that's only going to be a problem re overheating in direct sun I'd have thought.
Beat me too it! Blue Screen of Death - a wall that freezes and blinds all players and can only be countered by force-reboot. Found only in the most popular rpg game that's also played by non-rpg-ers and is derised by hardcore rpg-ers!
Additonal power - Also causes infinite ping in mmorpgs