On fishing boats I've heard and seen people say and add alka seltzer to a sardine to try and kill pelicans etc. that were stealing their bait.
Never seemed to work as far as I saw.
MAYBE the aspirin in it might kill them-thin their blood,I don't know,eventually-but fish oil thins blood.
At least in humans-I'm on blood thinners.
Aspirin AND fish thin my blood out if I eat either with my Coumadin.
Aspirin can kill your dog if you give it the wrong dosage or for too long-
Note that individual dogs metabolize aspirin at very different rates. This inconsistency can lead to an unexpected accumulation of dangerous breakdown products in the animal’s body. As few as two regular-strength aspirin tablets can produce severe organ damage in some medium-size (30 pounds, 13.6kg) dogs. Follow the exact dosage given in the table on page 571 to avoid this complication.
I guess people think birds can't belch or fart.
They never eat stuff that gives them gas?
http://www.snopes.com/critters/crusader/birdrice.asp
Exploding bird is pure BS.
You may kill them with the aspirin though...I don't know for sure but if I remember right,original Alka Seltzer was sodium bicarbonate and aspirin,might be wrong...might be one of the other versions.
Several years ago a seagull flew out in front of my car.
We were going MAYBE 15mph at the time.
It bounced off the hood and I stopped.
It must have been in shock,it let me pick it up and check it out.
I saw nothing wrong with it,though it refused to fly when I let it go.
I decided since it was so friendly I'd watch it for a while.
It drove around all day doing estimates with me (everytime I parked it didn't try and fly away though I left the windows open).
It ate part of a Jack in the box burger and a few fries while sitting on my Delta 88's dash board.
After cruising with me all day we went to the Marina Dell Ray Breakwater and fished all night.
The bird stuck around all night in the car.
Ate a couple dines and some mackerle I had left before we went home.
Loved my dash board I guess.
I left the windows open all night when I got home and the local cats killed it in my car before I got up the next day.
Feathers all over my car and remains on the lawn.
I do think it had internal injuries or it would have flown of at some time.
I don't think it was tame and hung out because I'm a nice guy.
I think it probably would have eventually died anyway from internal injuries or...
If it was me,I'd get out my long handled fish net and catch it.
Since vets are as expensive as regular quacks these days,I'd kill it the same as I'd kill a chicken for dinner.
Might sound cold blooded but I've had to kill a few messed up wild critters with a STRONG blow to the head.
I think it is more humane than other ways in general.
You said you don't have a firearm...
If it eats,maybe a pain killer overdose would be cool.
Maybe a friend has some Moma's little helpers around?
I'm sure you can google a few humane ways to put it out of it's misery.
Something that IF it's still eating(toss it some sardines or?).
Seagulls DON"T need water to eat,ever been to a dump OR left your bait ice chest open?
I agree with you,IF it was something considered as cool you'd have every tree hugger type running to save the bird.