Here are some possible causes of a purple or black claw in a budgie bird:
Trauma: If your bird has suffered an injury to its claw, such has being caught in the cage wires, it could cause bruising or damage to the blood supply to the claw. This can lead to the claw becoming discoloured and possibly even falling off.
Infection: A bacterial or fungal infection can also cause a claw to become discoloured. This is often accompanied by other symptoms such as swelling, pain, and discharge.
Nutritional Deficiencies: A diet that is deficient in certain nutrients, such has calcium or vitamin B12, can also lead to brittle or discoloured claws.
Systemic Disease: Certain diseases that affect the entire bird, such as kidney or liver problems, can also cause the claws to become discoloured.
It's important to remember that only a qualified veterinarian can accurately diagnose the cause of your bird's discoloured claw. Therefore, it's crucial to seek veterinary attention as soon as possible.
Here are some additional things you can do to help your budgie bird while you are waiting to see the vet:
Keep your bird in a clean and comfortable environment: Make sure your bird's cage is clean and free of any potential hazards, such as sharp objects or loose wires. Provide your bird with a variety of perches of different sizes to help distribute its weight and prevent pressure on the injured claw.
Offer your bird a soft food diet: For now it's best to offer a soft food diet such as soaked pellets, cooked vegetables, and fruits. Avoid giving your bird any seeds, nuts, or hard foods that could further damage the injured claw.
Encourage your bird to drink: Make sure your bird has access to fresh water at all times. You may also want to offer your bird some electrolyte water to help prevent dehydration.
Avoid handling your bird: To minimize stress on the injured claw, avoid handling your bird unless necessary. If you do need to handle your bird, be sure to support its body and gently cup the injured claw.
By following these tips, you can help you support your budgie bird and make it as comfortable as possible while you're waiting for veterinary care.