He conducted fieldwork and collected birds in the Atlas Mountains of Morocco, the Canary Islands and Spain, the presumably-extinct Canary Islands Oystercatcher Haematopus meadewaldoi being foremost among them.
Canary Islands | Faroe Islands | Solomon Islands | Channel Islands | Falkland Islands | Marshall Islands | South Shetland Islands | Hawaiian Islands | Pacific Islands | Saint Thomas, U.S. Virgin Islands | Aleutian Islands | Cook Islands | Balearic Islands | British Virgin Islands | Cayman Islands | Channel Islands of California | Andaman Islands | Ryukyu Islands | Galápagos Islands | Chatham Islands | Canary Wharf | Black Canary | Caroline Islands | U.S. Virgin Islands | Northern Mariana Islands | Virgin Islands | Lau Islands | Faroe Islands national football team | Åland Islands | Galapagos Islands |