Vampire competition

Three vampires are having a competition to find out who’s the most vicious vampire amongst them.
The first one says, “Watch this,”
He flies fast, at about 100 miles/hour. After 10 minutes, he comes back with blood all over his mouth.
“What happened?” asked the other vampires.
“Did you see that house over there?” he inquired.
The others nod their heads.
“Well… I killed the entire family and sucked the blood dry!” he replied.

“Wow, fascinating!”, replied the other two.
Then the second one takes the next turn, “Watch and learn, guys!”
He flies even faster, at about 120 miles/hour. After only 5 minutes, he comes back with blood all over his mouth and his neck
“What happened??” they asked.
“Do you see that village over there?” he inquired.
The others nod their heads.
“Well… I killed every last person on that village and sucked the blood dry!”
“Wow, amazing!”, replied the other two.
Finally, the last one steps up and says, “Don’t blink or you’ll miss it”
He flies really fast, even faster than the other two, at about 140 miles/hour. After mere 30 seconds, he comes back with blood all over his mouth, his neck, and his nose.
“Wh..what did you do???” they asked.
“Do you see that big ass tree over there?” he inquired
“Yes..yes?!” they replied awestruck.
“Well. I didn’t”