A stylized bird with an open mouth, tweeting. A play button in the shape of a television screen. June 2018 — Apple launches a free repair program for owners of affected Mac. Malwarebytes said there was a 400 percent increase in threats on Mac devices from 2018 to 2019, and found an average of 11 threats per Mac devices, which about twice the 5.8 average on Windows. Bird Process Running on My Mac The short answer is that the bird process Mac is the back end process behind iCloud and iCloud drive. It can sit there on your Mac computer at 100 percent CPU usage all the time, without appearing to accomplish anything. You cannot delete it as well.

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Optimize your battery life

Your notebook battery life depends on your computer's configuration and how you're using the computer. Here are some settings and steps you can take to get the most from your computer’s battery.

Check Battery preferences

The Battery pane in System Preferences has settings to help improve the battery life on your Mac notebook. To view Battery settings, choose Apple menu  > System Preferences, click Battery or Energy Saver, then select the Battery tab.

The example above is from macOS Big Sur. Some features such as Automatic graphic switching and Power Nap aren't available on all Mac notebooks or versions of macOS.

For maximum battery life, use the following settings:

  • Turn on “Slightly dim the display while on battery power”. This setting lets your Mac adjust the display brightness to 75% when you unplug the computer from power.
  • Turn off “Enable Power Nap while on battery power”. This setting prevents your Mac from checking for mail or other iCloud updates during sleep which improves standby time.
  • Turn on 'Optimize video streaming while on battery”. This setting lets high-dynamic-range (HDR) video play in standard dynamic range (SDR) while on battery power, which uses less energy.
  • Turn on “Automatic graphics switching”. This setting lets MacBook Pro models with multiple graphics processors automatically switch between them to maximize battery life.

Adjust display brightness

By default, your display automatically adjusts the brightness to conserve power. If you turn off automatic brightness, you should turn it back on later to preserve battery life. To set the brightness automatically, choose Apple menu  > System Preferences, click Displays, then turn on ”Automatically adjust brightness”. Learn how to adjust your brightness manually.

Check battery health

You can check the health of your battery in Battery preferences or the Battery status menu:

  • In macOS Big Sur, choose Apple menu  > System Preferences, click Battery, select Battery in the sidebar, then click Battery Health.
  • In macOS Catalina or earlier, hold the Option key and click the battery icon in the menu bar to reveal the battery status menu.

You'll see one of the following status indicators:

  • Normal: The battery is functioning normally.
  • Service Recommended: The battery's ability to hold charge is less than when it was new or it isn't functioning normally. You can safely continue to use your Mac but you should take it to an Apple Store or Apple-authorized service provider to get your battery evaluated.

To get service on your battery, contact Apple.

In earlier versions of macOS, the battery status might display Replace Soon, Replace Now, or Service Battery if your battery holds less of a charge than when it was new or needs to be serviced. If the battery's lowered charging capacity is affecting your experience, get your battery evaluated at an Apple Store or Apple-authorized service provider.

While some third-party apps report on battery health conditions, the data reported by these apps may be inaccurate and isn't a conclusive indication of actual diminished system run time. It's best to rely on the information reported in the battery health menu, described above.

Diagnose battery issues

Learn how to check your hardware, identify apps or features contributing to high energy use, and resolve charging issues.

Run diagnostics

A great place to start when troubleshooting battery issues is the built-in diagnostics that are available on your Mac notebook. Learn how to use Apple Diagnostics on your Mac.

If you don't find any issues with Apple Diagnostics, read on for more information about troubleshooting your battery.

Check the battery status menu

The battery status menu shows you how much charge your battery has and whether it's currently charging. This menu is at the right side of the menu bar:

The battery status menu also tells you if your display or any apps are using significant energy. Also consider closing any apps that are listed to save battery power.

If you use optimized battery charging in macOS Big Sur, you'll see additional information when your Mac is connected to power, such as whether charging is paused or when your battery will be fully charged. If charging is paused and you need to have your Mac fully charged sooner, click Charge To Full Now.

Resolve charging issues

Get help with other issues such as if your Mac won't recognize a power adapter or charge to 100%.

If your Mac isn't charging

Confirm the correct wattage AC adapter for your computer. A power adapter rated for a lower wattage than is required for the system might not reliably charge the computer. If you're not sure which power adapter to use with your computer, learn how to find the right power adapter and cord for your Mac notebook.

For more help, learn what to do if your USB-C power adapter isn't charging your Mac notebook. If issues persist, shut down your Mac, close the display for 30 seconds, then try to charge again. Or if you have an Intel-based Mac, reset the SMC.

If your Mac won't charge to 100%

If you use optimized battery charging in macOS Big Sur or use macOS Catalina or earlier, occasionally the battery might not show a full charge (100%) in macOS, even after the power adapter has been connected for an extended period of time. This behavior is normal and helps prolong the overall life of the battery.

Servicing the battery in your Mac notebook

MacBook, MacBook Air, and MacBook Pro computers with built-in batteries should only have their batteries replaced by an Apple Authorized Service Provider or at an Apple Store. Attempting to replace a built-in battery yourself could damage your equipment, and such damage is not covered by warranty.

Some older Mac notebooks have removable batteries that you can replace yourself. Contact an Apple Authorized Service Provider or an Apple Store for assistance servicing a removable battery.

Battery warranty information

Your Apple One Year Limited Warranty includes replacement coverage for a defective battery. If you purchased an AppleCare Protection Plan for your Mac notebook, Apple will replace the notebook battery at no charge if it retains less than 80 percent of its original capacity. If you don't have coverage, you can have the battery replaced for a fee.

Understanding batteries in Mac notebooks

MacBook, MacBook Air, and MacBook Pro computers come with lithium polymer batteries to provide maximum battery life in a compact space. To understand battery technology and battery life, it's good to know common battery terminology:

  • Cycle count: Batteries are expected to function for a certain number of cycles. This number represents the sum of total and partial discharge cycles throughout the life of the battery. You can see the cycle count limit for your computer by reviewing Determine battery cycle count for Mac notebooks.
  • Full charge capacity: Measured in mAH (milliampere-hours), this refers to the amount of power the battery is capable of containing, less the energy required to shut down the device. This number lowers as the battery becomes depleted with usage and age.
  • Remaining charge capacity: This number represents the current amount of power left in the battery as measured in mAh (milliampere-hours). Using the computer when not connected to AC power will cause this number to lower as power is depleted from the battery.
  • Defective: Batteries are considered defective when they stop working due to a defect in materials or workmanship, or due to a manufacturing defect. Defective batteries are covered under Apple's one-year limited warranty and extended-service contracts.
  • Load: The amount of activity being performed by a task or tasks. Certain power-intensive processes place a heavier load on the battery and result in a much-reduced runtime per charge.

Learn more

Learn more about the batteries used in Apple products.

iTunes is going places.

Download macOS Catalina for an all‑new entertainment experience. Your music, TV shows, movies, podcasts, and audiobooks will transfer automatically to the Apple Music, Apple TV, Apple Podcasts, and Apple Books apps where you’ll still have access to your favorite iTunes features, including purchases, rentals, and imports.

You can always download iTunes 12.8 for previous versions of macOS,
as well as the iTunes application for Windows.

Hardware:

  • Mac computer with an Intel processor
  • To play 720p HD video, an iTunes LP, or iTunes Extras, a 2.0GHz Intel Core 2 Duo or faster processor is required
  • To play 1080p HD video, a 2.4GHz Intel Core 2 Duo or faster processor and 2GB of RAM is required
  • Screen resolution of 1024x768 or greater; 1280x800 or greater is required to play an iTunes LP or iTunes Extras
  • Internet connection to use Apple Music, the iTunes Store, and iTunes Extras
  • Apple combo drive or SuperDrive to create audio, MP3, or backup CDs; some non-Apple CD-RW recorders may also work. Songs from the Apple Music catalog cannot be burned to a CD.

Software:

  • OS X version 10.10.5 or later
  • 400MB of available disk space
  • Apple Music, iTunes Store, and iTunes Match availability may vary by country
  • Apple Music trial requires sign-up and is available for new subscribers only. Plan automatically renews after trial.

iTunes

Download the latest version for Windows.

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The latest entertainment apps now come installed with macOS Catalina. Upgrade today to get your favorite music, movies, TV shows, and podcasts. You can join Apple Music and stream — or download and play offline — over 75 million songs, ad‑free.

iTunes

Download the latest version from the Microsoft Store.

The latest entertainment apps now come installed with macOS Catalina. Upgrade today to get your favorite music, movies, TV shows, and podcasts. You can join Apple Music and stream — or download and play offline — over 75 million songs, ad‑free.

Hardware:

  • PC with a 1GHz Intel or AMD processor with support for SSE2 and 512MB of RAM
  • To play standard-definition video from the iTunes Store, an Intel Pentium D or faster processor, 512MB of RAM, and a DirectX 9.0–compatible video card is required
  • To play 720p HD video, an iTunes LP, or iTunes Extras, a 2.0GHz Intel Core 2 Duo or faster processor, 1GB of RAM, and an Intel GMA X3000, ATI Radeon X1300, or NVIDIA GeForce 6150 or better is required
  • To play 1080p HD video, a 2.4GHz Intel Core 2 Duo or faster processor, 2GB of RAM, and an Intel GMA X4500HD, ATI Radeon HD 2400, or NVIDIA GeForce 8300 GS or better is required
  • Screen resolution of 1024x768 or greater; 1280x800 or greater is required to play an iTunes LP or iTunes Extras
  • 16-bit sound card and speakers
  • Internet connection to use Apple Music, the iTunes Store, and iTunes Extras
  • iTunes-compatible CD or DVD recorder to create audio CDs, MP3 CDs, or backup CDs or DVDs. Songs from the Apple Music catalog cannot be burned to a CD.

Software:

  • Windows 10
  • 64-bit editions of Windows require the iTunes 64-bit installer
  • 400MB of available disk space
  • Some third-party visualizers may no longer be compatible with this version of iTunes. Please contact the developer for an updated visualizer that is compatible with iTunes 12.1 or later.
  • Apple Music, iTunes Store, and iTunes Match availability may vary by country
  • Apple Music trial requires sign-up and is available for new subscribers only. Plan automatically renews after trial.

iTunes is going places.

Visit the iTunes Store on iOS to buy and download your favorite songs, TV shows, movies, and podcasts. You can also download macOS Catalina for an all-new entertainment experience on desktop. Your library will transfer automatically to the new Apple Music app, Apple TV, and Apple Podcasts. And you’ll still have access to your favorite iTunes features, including your previous iTunes Store purchases, rentals, and imports and the ability to easily manage your library.

Music, TV, and podcasts
take center stage.

iTunes forever changed the way people experienced music, movies, TV shows, and podcasts. It all changes again with three all-new, dedicated apps — Apple Music, Apple TV, and Apple Podcasts — each designed from the ground up to be the best way to enjoy entertainment on your Mac. And rest assured; everything you had in your iTunes library is still accessible in each app. iCloud seamlessly syncs everything across your devices — or you can back up, restore, and sync by connecting the device directly to your Mac.

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The new Apple Music app is the ultimate music streaming experience on Mac.1 Explore a library of over 75 million songs, discover new artists and tracks, find the perfect playlist, download and listen offline, or enjoy all the music you’ve collected over the years. And find it all in your music library on all your devices.

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The Apple TV app for Mac is the new home for all your favorite movies, shows, premium channels, and Apple TV+. Watch everything directly in the app or enjoy it offline, and discover the best of what’s on in the Watch Now tab. You can even pick up where you left off on any screen, across all your devices. And for the first time, 4K2 and Dolby Atmos3-supported movies are available on Mac.

More than 700,000 of the best entertainment, comedy, news, and sports shows are now available on your Mac with Apple Podcasts. Search for podcasts by title, topic, guest, host, content, and more. Subscribe and be notified as soon as new episodes become available. And in the Listen Now tab, you can easily pick up where you left off across all your devices.

iTunes Support can help answer your questions

Get help with syncing, updating to a more recent version of iTunes, or with an iTunes Store purchase — and much more.

Learn more

Looking for a previous version of iTunes?

Download earlier versions of iTunes to work with compatible operating systems and hardware.

Find previous versions of iTunes