Second ios App tutorial from developer.apple.com

[Dane2259]

I have been walking through the tutorial "second ios app" on apple's developer website and I am getting a warning from the code that is implemented in the "Get the User's Input" section at the bottom of this link https://developer.apple.com/library/ios/#documentation/iPhone/Conceptual/SecondiOSAppTutorial/CreatingAddView/CreatingAddView.html#//apple_ref/doc/uid/TP40011318-CH6-SW1

In the implementation of the done method there is the line:
[self.dataController addBirdSightingWithSighting:addController.birdSighting];

I'll add the BirdSightingDataController header file below this entry, but it doesn't have a addBirdSightingWithSighting method. The title is addBirdSightingWithName and it takes two parameters.
This code should update the master scene with a new BirdSighting instance, but even when I change the method name I get the warning: "no visible @interface for "BirdSightingDataController" declares the selector addBirdSightingWithSighting:"

Any help would be greatly appreciated.

[Dane2259]

#import <Foundation/Foundation.h>

@class BirdSighting;

@interface BirdSightingDataController : NSObject

@property (nonatomic, copy) NSMutableArray *masterBirdSightingList;

- (NSUInteger)countOfList;
- (BirdSighting *)objectInListAtIndex:(NSUInteger)theIndex;
- (void)addBirdSightingWithName:(NSString *)inputBirdName location:(NSString *)inputLocation;

@end

[Dane2259]

Below is the BirdsMasterViewController.m file. The warning occurs on line 93 in the done:segue method. The dataController is a property in BirdsMasterViewController. Like I said any help would be greatly appreciated and if you need any more information just ask.

//
//  BirdsMasterViewController.m
//  BirdWatching
//
//  Created by Dane on 9/2/12.
//  Copyright (c) 2012 Dane. All rights reserved.
//

#import "BirdsMasterViewController.h"

#import "BirdsDetailViewController.h"

#import "BirdSightingDataController.h"

#import "BirdSighting.h"

#import "AddSightingViewController.h"

@implementation BirdsMasterViewController

@synthesize dataController = _dataController;

- (void)awakeFromNib
{
    [super awakeFromNib];
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    }

- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}

#pragma mark - Table View

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return [self.dataController countOfList];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *CellIdentifier = @"BirdSightingCell";

    static NSDateFormatter *formatter = nil;
    if (formatter == nil) {
        formatter = [[NSDateFormatter alloc] init];
        [formatter setDateStyle:NSDateFormatterMediumStyle];
    }
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    BirdSighting *sightingAtIndex = [self.dataController objectInListAtIndex:indexPath.row];
    [[cell textLabel] setText:sightingAtIndex.name];
    [[cell detailTextLabel] setText:[formatter stringFromDate:(NSDate *)sightingAtIndex.date]];
    return cell;
}
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
    // Return NO if you do not want the specified item to be editable.
    return NO;
}


- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    if ([[segue identifier] isEqualToString:@"ShowSightingDetails"]) {
        BirdsDetailViewController *detailViewController = [segue destinationViewController];

        detailViewController.sighting = [self.dataController objectInListAtIndex:[self.tableView indexPathForSelectedRow].row];
    }
}

- (IBAction)done:(UIStoryboardSegue *)segue
{
    if ([[segue identifier] isEqualToString:@"ReturnInput"]) {

        AddSightingViewController *addController = [segue sourceViewController];
        if (addController.birdSighting) {
            [self.dataController addBirdSightingWithSighting:addController.birdSighting];
            [[self tableView] reloadData];
        }

        [self dismissViewControllerAnimated:YES completion:NULL];
    }
}

- (IBAction)cancel:(UIStoryboardSegue *)segue
{
    if ([[segue identifier] isEqualToString:@"CancelInput"]) {
        [self dismissViewControllerAnimated:YES completion:NULL];
    }
}

@end