It is similar to smoke and an outhouse - כקוטרא ובית הכסא דמו
Summary:
רב יוסף, being an איסטניס could not bear the combination of bloodletting and the monetary loss of the dates, or he could not bear the dates being drenched in blood.
We distance the dovecote fifty cubits from the city - מרחיקין השובך מן העיר חמשים אמה
Summary:
If the שובך is placed fifty אמות from the city it will not eat the grain that is spread out to dry on the roofs, and not the grain in the fields which are a thousand אמות distance from the city.
An area of four Koor, as is the full flight of a dove - בית ארבעת כורין כמלא שגר היונה
Summary:
All agree that the doves fly more than fifty אמות, however ר"י ורבנן argue whether they eat their fill within fifty אמות (the רבנן), or not (ר"י).
But the Braysoh taught that in a settled place [he should not spread out the nets] even for a hundred Mil - והתניא ביישוב אפילו מאה מיל
Summary:
The גמרא is asking on אביי that since we see that birds can fly even a hundred מיל even though elsewhere it states they can fly only thirty ריס, this seemingly indicates that the reason for this difference is that when there is food on the way they continue to eat (beyond חמישים אמה) and to fly (beyond שלשים ריס).
Summary:
We cannot derive the rules (of יורש ולוקח) one from the other, but once we know the rule exists by both, we can derive the details one from the other.
They surely relinquished their claim against him - אחולי אחילו גביה
Summary:
The מחילה is done by all the people who, since they each have a minimal share, are willing to be מוחל, easier than one individual who carries the entire loss.