What is the distance from an airport from which an airliner climbs above 550 m? Is it possible to determine a common distance from the runway threshold at which an airliner climbs above 300 metres and 550 metres above-ground-level (AGL)? 

And for landings? Where do they descend below it?

I need to determine at least an approximate value of common distance. But in  the best case I’d like to determine:


the maximum distance
the minimum distance  
the average distance or the distance which is used by most airliners.


I am not from aviation, thus I need to ask this question to professional pilots.
The aim is related with the “Bird strike problem”. 
300 m and 550 m – is respectively the common height and the maximum height of flight of Black vulture - a bird species living in South and North Americas which caused the most strikes with aviation within its range. I’m doing the scientific research and study the risk of collision with this bird and the possible measures to decrease this risk.
For the landing is quite easy.

Airliners usually approach an airport descending along $3^\circ$ slopes. This means that they will be 300m AGL approximately 5.7km before the runway threshold, and they will be at 550m AGL about 10.5km before the same point.

For the take-off the situation is a bit more complicated, as each aircraft will have a different performance. Taking a value of about 1000ft/min for the vertical velocity and 200Kts for the forward velocity (in aviation we use the imperial system, for a bit of background see here) we get similar distances to the above (it is a $2.8^\circ$ slope)

Note that these paths are more or less a straight continuation of the runway, particularly on the landing side (less so on the take off side).

Each airport has approach and departure procedures, you could try to have a look at those. They are usually published by Jeppesen.