Question 1175222
.


From the Internet


<pre>
    Generally birds follow the facetious advice often given to pilots -- "fly low and slow." 

    Most cruise speeds are in the 20-to-30-mph range, with an eider duck 

    having the fastest accurately clocked air speed of about 47 mph.
</pre>


On this subject, see also Wikipedia article


https://en.wikipedia.org/wiki/List_of_birds_by_flight_speed