Subject: Do birds, such as Crows and Raptors, stall their wings when they land

>Dear Sir,
>
>I am writing with a follow up question.
>
>Here is some info from my initial request:
>The question you submitted to MadSci Network on
>Thu May 18 12:47:23 2000 -- How do crows and seagulls accelerate into a
>strong wind without gliding?
>has been answered. We will include a copy of the answer below, or
>you may visit our site by going to:
>
>http://www.madsci.org/posts/960237454.Ph.q.html
>
>I actually have 2 questions:
>
>1) There is a term in aviation called "Adverse Yaw" and I have had great
>difficulty locating the specific reason(s) why this occurs - all people can
>tell us is there's more drag because the aileron on the raised wing is down.
>  My friends and I speculate that the since the outside wing is raised as a
>result of greater lift, it is retarded by the greater induced drag
>associated with the production of the added lift.
>
>2)  When birds such as Seagulls, Crows, or Birds of Prey land, do they
>actually "stall" their wings or rather produce an excess amount of lift for
>a brief period of time??  Is their a breakdown of the airflow over the top
>of their wings??
>
>I really appreciate your help on this.  You guys provide a wonderful
>service.
>
>Thank you.
>
>Joshua Freund
>Sophomore
>Univ. of ND

Re: Do birds, such as Crows and Raptors, stall their wings when they land