c. No overhead patterns permitted for transient fighters.

d.
Fighters performing visual straight-in approach to Runway 28L will intercept final approach at least 8 miles from touch down at or above 3,500' MSL, or as directed by ATC.

e.
Transient fighters will not perform afterburner takeoffs except when operationally required. If so, fighters will terminate afterburners on takeoff no later than departure end of runway, or 300 KIAS, whichever occurs first.

(142 OSF/142 OSF FIL 07-870)
2. CAUTION - BIRD WATCH CONDITION INFORMATION -
a.
Portland ANGB is located on the south side of the Portland Intl (KPDX) and is centrally located within the Willamette Valley and the Pacific Flyway. Portland Intl (KPDX) is surrounded by marshes, lakes, rivers, wildlife areas and wildlife refuges. Large birds of concern include: Canada Geese, Mallards, Great-Blue Herons, Gulls, Bald Eagles, and Red-tail Hawks pose a high risk to aircraft at Portland Intl (KPDX). Smaller birds that fall into the moderate and low risk categories include numerous Swallow species, flocks of Starlings, American Kestrels, and owls. The Portland Intl (KPDX) also has identified a significant coyote population.

b.
BASH Phase I. All months not designated as Phase II. Wildlife activity is generally LOW during these periods except for small bird activity during daylight hours and during mowing operations. Portland Intl (KPDX) has a large resident population of Great-Blue Herons. Great-Blue Heron presence can be observed throughout the airfield proper year round with increased abundance immediately following mowing operations.

c.
BASH Phase II. November through mid April. The potential for damaging bird strikes is highest during the migration months and within an hour of sunrise and or sunset. During periods of high moon illumination, waterfowl may fly well after sunset. Historical bird strike data shows the most hazardous months for waterfowl to be during the winter goose migration.

d.
BIRD WATCH CONDITIONS (BWC) are determined by Portland ANGB Airfield Managers and Port of Portland Wildlife personnel. BWCs are not currently announced over ATIS. Transient

aircrew should contact the Portland ANGB Command Post for the latest update to BWC status, or Portland Tower for real time bird activity. Reported BWC at Portland Intl (KPDX) are defined as follows:
(1)
Bird Watch Condition LOW: Normal bird activity on and above the airfield with low probability of hazard. Continue with operations as normal.

(2)
Bird Watch Condition MODERATE: Concentrations of birds observable in locations that represent a probable hazard to safe flying operations. This condition requires increased vigilance by all agencies and extreme caution by aircrew.

(3)
Bird Watch Condition SEVERE: Heavy concentrations of birds on or immediately above the active runway or in locations that represent an immediate hazard to flying operations. Aircrew must thoroughly evaluate mission need before operating under reported severe conditions.
　
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