The spring migration of adult North American Ospreys

Journal of Raptor Research
Mark S. Martell, Richard O. Bierregaard Jr., Brian E. Washburn, John E. Elliott, Charles J. Henny, Robert S. Kennedy, Iain MacLeod

download

Fall migration patterns of North American Ospreys have been described and studied disproportionately more than, the spring migration of these birds. We used satellite telemetry to: (1) determine the timing, duration and migratory routes of spring migrations; (2) determine if differences in spring migration patterns existed between the sexes and (3) compare consecutive fall and spring migrations of individual Ospreys.

The median dates for departure from the wintering grounds and arrival on the breeding grounds did not differ significantly between adult male and female Ospreys.  Nonetheless, the male almost always arrives a few days before the female.

Compared to their fall migrations, Ospreys spent fewer days on migration, fewer days in stopover periods along the migration route and traveled farther (on average) each day during spring.

Our findings suggest that, although sex and breeding location might influence the spring migration strategy used by individual Ospreys, both males and females minimize the time spent on migration to ensure a timely arrival on the breeding grounds to establish or defend a nesting territory.

immmages (4)

About Harriett Raptor

Harriett O. Raptor 8-year-old mother of five, lifelong mate of Ozzie Raptor until he perished last year, fluent in telepathy with The Doctor and possessor of genetic memory. She is an intellectual, a scholar, philosopher and thinker; a wise, learned osprey especially distinguished for her expertise on the H. sapiens problem.
This entry was posted in Ospreys. Bookmark the permalink.

2 Responses to The spring migration of adult North American Ospreys

  1. Vicky says:

    And Harriet is spending time with us in Yhe Villages! She says she will be along shortly!

  2. Dear Mrs. Wade,
    I thank you again for commenting on our webpage. It makes the Doctor very happy.
    Now let me see; you are PRIME NUMBER 7 and your Pi digit is 1. Your comment has now made you eligible for a flavor. At the present time we only have approximately 100 flavors to choose from. However if you would like to add your own personal favorite flavor, I will ask the doctor if it is mathematically possible to include it. There’s no rush to make a decision. Thank you again for your interest in the Osprey Tales.

    Harriett

    Mint
    Cherry
    Almond
    Chardonnay
    Coconut
    Peanut Butter
    Raspberry
    Sauvignon Blanc
    Marshmallow
    Fudge
    Amaretto
    Merlot
    Chocolate
    Dark Chocolate
    Apple
    Pinot Noir
    Caramel
    Bubble Gum
    Burgundy
    Jack Daniels
    Irish Cream
    Banana
    Butterscotch
    Gray Goose
    Apricot
    Avocado
    Coffee
    Tangueray
    Cookie Dough
    Black Cherry
    Cherry Vanilla
    Black Walnut
    Bourbon
    Cheesecake
    Licorice
    Black Raspberry
    Crown Royal
    Pecan
    Butter Almond
    Cappuccino
    Butter Brickle
    Wild Turkey
    Butter Chocolate Chip (Chocolate Shoppe)
    Cantaloupe
    Raisins and Rum
    Butter Pecan
    Carrot
    Butter Scotch
    Toffee
    Ginger
    Hazelnut
    Macadamia Nut
    Maple
    Green Tea
    Oreo
    Cotton Candy
    Cranberry
    Creme Dementhe
    Pistachio
    Egg Nog
    English Toffee
    Mocha
    Orange
    French Vanilla
    Peach
    Nutmeg
    Garlic
    German Chocolate
    Anchovy
    Lemon
    Grape
    Grapefruit
    Hawaiian Fruit Cup
    Honey
    Irish Cream
    Licorice
    Kahlua
    Kiwi
    Mango
    Tangerine
    Soy Sauce
    Neapolitan
    Pear
    Pineapple
    Papaya
    Peppermint
    Plum
    Pumpkin
    Tequila
    Vanilla
    Watermelon
    Brown Sugar
    Praline
    Strawberry
    Apple Cinnamon
    Baby Ruth
    Walnut
    Banana Strawberry
    Blackberry
    Blueberry
    Cashew
    Red Pepper
    Onion
    Old Bay
    Sardine
    Texas Pete
    Clam juice
    Oyster juice
    Chili pepper
    Horseradish

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s