public void SaveNew(Bird bird)
        {
            if (bird.Name != null)
            {
                if (BirdDB.Add(bird))
                {
                    if (bird.BirdType == null)
                    {
                        bird.BirdType = "Unknown";
                    }

                    if (bird.Length == null)
                    {
                        bird.Length = "Unknown";
                    }

                    if (bird.Description == null)
                    {
                        bird.Description = "Add some description.";
                    }

                    if (bird.BaseColor == null)
                    {
                        bird.BaseColor = "Unknown";
                    }

                    if (bird.ImageUrl == null)
                    {
                        bird.ImageUrl = "http://images.clipartpanda.com/bird-clipart-Twitter-Bird-Clip-Art.png";
                    }

                    BirdDB.Update(bird);
                    Birds.Add(bird);
                    _listener.NotifyDataChanged();
                    CurrentBird = bird;
                    CurrentWorkspace = new DetailsViewModel(this, (Bird)CurrentBird.Clone());
                }
                else
                {
                    MessageBox.Show("You already have this bird in your list!");
                }
            }
            else
            {
                MessageBox.Show("You cannot create a nameless bird!");
            }
        }
        public void Save(Bird bird)
        {
            if (Birds.Contains(bird))
            {
                if (bird.BirdType == "")
                {
                    bird.BirdType = "Unknown";
                }

                if (bird.Length == "")
                {
                    bird.Length = "Unknown";
                }

                if (bird.Description == "")
                {
                    bird.Description = "Add some description.";
                }

                if (bird.BaseColor == "")
                {
                    bird.BaseColor = "Unknown";
                }

                BirdDB.Update(bird);
                Birds[Birds.IndexOf(bird)] = bird;
                _listener.NotifyDataChanged();
                CurrentBird = bird;
                CurrentWorkspace = new DetailsViewModel(this, (Bird)CurrentBird.Clone());
            }
        }