checkLevel:function(animationDeferredsArray){

        var ballsCount = this.nestBox.getBallsCount();
        var birdCages = this.gameItemCollection.getCages();
        var birdCagesTotal = birdCages.length;

        if(!birdCagesTotal){

            var restItems = this.gameItemCollection.getAll();
            var nestDeferred = this.nestBox.flipRestBirds();

            var restItemsDeferreds = [];

            cc.each(restItems, function (item, index) {
                var letGoProcess =  item.letGo({'index':index});
                restItemsDeferreds.push(letGoProcess);
            }, this);

            this.finishAnimationDeferreds = this.finishAnimationDeferreds.concat(animationDeferredsArray,[nestDeferred],restItemsDeferreds);
            this.runFinalAnimation();

        }else{
            if(!ballsCount){
                setTimeout(function(){
                    this.showNeedMoreBirdAnimation();
                }.bind(this),this._showNeedMoreBirdPopupDelay);
            }
        }
    },