text: 'use strict';
  
  var SilentBird = require('./silentbird');
  
  // A regular bird
  var Bird = function(game, x, y, frame) {
    SilentBird.call(this, game, x, y, frame, 'You');
  
    // New sounds
    this.flapSound = this.game.add.audio('flap');
    this.pipeHitSound = this.game.add.audio('pipeHit');
    this.groundHitSound = this.game.add.audio('groundHit');
  
    this.body.collideWorldBounds = true;
  
    this.alpha = 1;
  };
  
  Bird.prototype = Object.create(SilentBird.prototype);
  Bird.prototype.constructor = Bird;
  
  module.exports = Bird;
  