Find the frequent bird species with least integer value

Migrating Birds.py

def migrate(birds):
    birds.sort()
    FFB = my_bird = count = 0
    for bird in range(len(birds)-1):
        if birds[bird] == birds[bird+1]:
            count += 1
            if count > my_bird:
                my_bird = count
                FFB = birds[bird]
        else:
            count = 0
    return(FFB)
    
birds = [1,1,1,2,2,2,2,2,3,3,4,5,4,1]
frq = migrate(birds)
print(frq)

How is it different?
I think my code is efficient because the code is not designed only for integers between 1-5 but for any value and number of integers. Try it yourself!