Bird moves with idle animation?

When the game starts, the bird follows the player just fine, however he is using the idle animation. I assume it has something to do with passing the velocity to the animator? here is my code:

using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.AI;

public class BirdMovement : MonoBehaviour {

[SerializeField]
private Transform target;
private NavMeshAgent birdAgent;
private Animator birdAnimator;

// Use this for initialization
void Start () {
    birdAgent = GetComponent<NavMeshAgent>();
    birdAnimator = GetComponent<Animator>();
}

// Update is called once per frame
void Update () {
    birdAgent.SetDestination(target.position);
    float speed = birdAgent.velocity.magnitude;
    birdAnimator.SetFloat("speed", speed);
}

}

I realize that the first two usings are unnecessary, but they were there to begin with so I left them (in case they will be necessary later, I don't know what I'm doing).

Here is the bird's inspector:

speed 5 angular speed 720 acceleration 8 stopping distance 5 auto breaking enabled

radius 1 height 4 high quality priority 50

here is the terrain's navigation:

agent radius 1 agent height 4 max slope 45 stop height 3

THANK YOU SO MUCH FOR ANY HELP!